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Thursday, December 4, 2008

Nokia E63 after Nokia E71


Nokia E71 successful snatch two prestigious title as the "Phone of The Year 2008" and "Best Smart Phones 2008" version of Mobile Choice Award, the predicate toss the phone as the mobile phone business is most in demand. Therefore, before the price and demand that more and more, creating vendor origin Finland provides other solutions.

E63 is the answer from Nokia to provide a more affordable option. Although not yet officially announced, E63 prototype has been leaking in the virtual domain. Design and looks not much different from the brothers, E71. E63 using Symbian OS v9.1, v3.1 and S60 also has a full QWERTY keyboard. And that's important is the E63 is a version of the E71 cheapness.

Other features of the Nokia E63 is to support high-speed data access (HSDPA), the display 256 thousand colors QVGA TFT, Wi-Fi, 3.5mm AV jack, microSD card slot, Bluetooth and 2 MP camera. So very clearly here that features the sharpness of the screen and the camera on the strength of E63 is trimmed. (E71 has a 16 million color TFT & 3.2 MP autofocus camera)

One again, if you Account Manager with the gadget design from a solid metal such as the E71, this new sister likely will not be attracted to open, all the Parties, only the E63 body made of plastic. E63 and say this will exit with three variants; E63-1 for the European segment, E63-2 does not have a camera and intended for corporate customers (bundling with push email), and E63-3 for the American market.

Sunday, November 16, 2008

The Nokia N96




General

Operating Frequency
N96-1 (RM-247, Global) WCDMA2100/900 (HSDPA) / EGSM900, GSM850/1800/1900 MHz (EGPRS)
N96-3 (RM-472, Americas) – WCDMA1900/850 (HSDPA) / EGSM900, GSM850/1800/1900 MHz (EGPRS)
N96 (RM-297, PR China) - EGSM900, GSM850/1800/1900 MHz (EGPRS)
Automatic switching between bands and modes
DVB-H, 470-750 MHz

Dimensions
Volume: 92 cc
Weight: 125 g
Length: 103 mm
Width: 55 mm
Depth:18 mm, locally up to 20 mm

Memory Functions*
16GB internal flash memory
MicroSD memory card slot (hot swappable) for expandability and flexibility

- Expand up to a total of 24 GB, for example with the Nokia MU-43 8GB microSD memory card (sold separately) Approximate dynamic memory capacity indication with 16GB storage:
-Video: 40 hours**
-Music: 12,000 tracks***
128MB RAM, 256MB system memory (operating system plus dynamic user data area)
Approximate dynamic memory capacity indication with 16GB storage:
-Video: 40 hours**
-Music: 12,000 tracks***
128MB RAM, 256MB system memory (operating system plus dynamic user data area)

Power Management
Battery: Nokia Battery BL-5F, 950 mAh
Talk time: up to 160 / 230 minutes (WCDMA / GSM)
Stand-by time: up to 200 / 230 hours (WCDMA / GSM)
Video playback: up to 5 hours (offline mode)
Music playback: up to 14 hours (offline mode)
TV playback: up to 4 hours (DVB-H)

*Operation times may vary depending on radio access technology used, operator network configuration and usage.


Display and User Interface
2.8” QVGA (240 x 320 pixels) LCD TFT display with up to 16 million colors
User Interface: S60 3rd Edition, Feature Pack 2
Active standby screen, Multimedia menu
Media keys, Multimedia access key, lockswitch, volume key, numeric (ITU-T) keypad, menu key, clear key, soft keys, send and end keys, power key, camera shutter key

Third Party Application Support
Operating system: Symbian OS 9.3
Nokia S60 third edition, feature pack 2
Java™ MIDP 2.1, CLDC 1.1 (Connected Limited Device Configuration (J2ME))
Flash Lite 3.0
C++ and Java SDKs
Downloadable third-party Java™ and Symbian applications
Support for Widgets

Call Management
Contacts: advanced contacts database with support for multiple phone and e-mail details per entry and thumbnail pictures
Speed dialing, voice dialing (speaker independent) and voice commands
Logs: lists of dialed, received and missed calls
Conference call
Integrated hands-free speakers

Data Transfer
WCDMA HSDPA with simultaneous voice and packet data (PS max speed DL/UL= 3.6Mbps/384kbps, CS max speed 64kbps)
Dual Transfer Mode (DTM) support for simultaneous voice and packet data connection in GSM/EDGE networks. Simple class A, multi slot class 11, max speed DL/UL: 177.6/118.4kbps
EGPRS class B, multi slot class 32, max speed DL/UL= 296/177.6kbps
GPRS class B, multi slot class 32, max speed DL/UL= 107/64.2kbps
Video & TV

Video Center
Enhanced video center: central hub for video experiences
Access to last played video and easy resume
My videos: collection of stored videos
Access to Internet Videos, compatible with RSS feeds and video podcasts, with direct wireless updates and downloads
Video directory to discover new Internet Videos

Video Codecs and Formats
MPEG-4 Part 2 (H.263/SP), up to VGA 30 fps, hardware-accelerated codec, scaled to max QVGA on device screen, or max SDTV on TV-out
MPEG-4 Part 10 (H.264/AVC), up to VGA 30 fps, hardware-accelerated codec, scaled to max QVGA on device screen, or SDTV on TV-out
Windows Media Video (WMV9), up to CIF/QVGA 30 fps, hardware-accelerated codec, scaled to max QVGA on device screen, or SDTV on TV-out
RealVideo QCIF at 30 fps
Flash video support in browser
DRM support: OMA DRM 1, OMA DRM 2, WM DRM

Live TV
Broadcast Television (DVB-H) capable
-DVB-H based mobile TV with internal antenna
-DVB-H Class C, 470-750 MHz
Program Guide (OMA BCAST ESG), with automatic updates and channel discovery
Instant Replay of TV program (up to 30 seconds)
Recording of TV programs for later viewing
Reminder setting via Program Guide
Interactive services
Multiple subscription and payment methods (pay TV including previews, free-to-air, pay per view), channel and content protection

Browser-based video access
Support for download, streaming and progressive download
Support for Flash video


Other video enablers
2.8” display
16 GB memory
Hi-Speed USB 2.0 connectivity
Integrated kickstand and landscape-oriented speakers
Media keys
Music

Music Features
Digital music player – supports MP3, AAC, eAAC+, WMA, album art
Playlist editing and sharing
Equalizer and visualization
Search, browse and purchase songs online in Nokia Music Store – with support for Windows Media DRM protected files

Radio and other
Stereo FM radio (87.5-108MHz, 76-90MHz) with support for RDS, Visual Radio™ and use of FM radio in offline mode
Internet Radio

Other music enablers
16 GB internal memory
Hi-Speed USB 2.0 connectivity
Support for standard 3.5mm headphones
Media keys
Integrated stereo speakers
Podcasting with direct wireless access to directory, feed updates and downloads
Listen to music wirelessly via Bluetooth stereo audio (A2DP)

Sony Ericsson C905 (2)- the camera


this is a related article of Sony Ericsson C905 before, about an 8 megapixel camera takes photos at a resolution of 3264 x 2448 pixels, which leads to photos that can be blown up to ridiculous sizes without loss of resolution or detail. However, in doing so, any shortcomings from the camera are also made immediately apparent. So confident are Sony Ericsson with the quality of their C905's pics, though, that during its launch they displayed its photos on A3 display boards - that's 297mm x 420mm - and there wasn't a trace of any picture degradation.

The C905's face detection feature will also ensure that people's faces always remain in focus when you're taking a pic, regardless of whether there's one, two or three people in the shot. Apparently, it'll even recognize ugly people, although really ugly people may cause it to throw a bit of a wobbly!

There's the usual array of image improvement software, including digital stabilization, smart contrast (which helps ensure you don't over-expose your subject) and red-eye reduction. There are also several different modes that you can shoot with, including panorama for extra wide shots. There are even a couple of applications that make use of the camera in innovative ways. CamPlus, for example, is a Java application that lets you take time-lapse photographs of a sense at time intervals that you define, and also lets you take photos whenever any motion is detected within the camera's field of vision.

Saturday, November 15, 2008

Nokia 5800 Express Music


Start this October, Nokia finally launched a new mobile phone, the Nokia 5800 Express Music . This is a mobile phone and music including the first generation of Nokia products that use the touch screen entirely.

Although the official was introduced in London and Singapore on 2 and 3 of last October, and will follow in nine other big cities in the world, the Nokia 5800 has not been circulating in the market. The schedule Nokia, mobile phone designed specifically for the music lover (music) is new on the market in the last quarter of this year or at the latest before Christmas. The price is 279 Euro, not a tax receipt.

Nokia is not the first that produce mobile phone music with touch screen. Previously existing iPhone from Apple and T-Mobile G1 from Google-based Android. The Nokia 5800 predicted future main competitors iPhone, which launched last year and successfully siphon attention of many people.

The Nokia own sure, the newest product will be successful. So far, Nokia has been selling mobile music experience. Nokia has sold 300 million devices that provide features music and 10 million units Nokia 5310 ExpressMusic, the incoming mobile music category. Sales figures optimistic that Nokia can make the market even though the Nokia 5800 ExpressMusic come later.

Online music store

Nokia to step into the digital music market not only in the provision of the device but also to develop its business model. Launching the Nokia 5800 was announced along with the presence of Nokia's Comes With Music, a music store service (Nokia Music Store) which have a collection of millions of songs. His return could be right, although not start with Apple, because it is done when EMI, Universal, and the world's major music labels to play in the digital music market.

This online music store will become a competitor of Apple, which currently controls the market with iTunes and Google are working together with the Amazon MP3 store. Meanwhile, the Nokia 5800 candidate haunt his Apple iPhone and mobile-phone Android that will exit the market to begin next year.

Only by buying the Nokia 5800 ExpressMusic, who were given free access for a year to download (download) songs from the catalogs available in the Nokia Music Store (http://www.musicstore.nokia.com). Each country will have the catalog apart at the Nokia Music Store. For Asia the new Singapore already have a catalog (see http://music.nokia.com.sg). People can download songs from the Nokia Music Store via computer or nokia device . Synchronization of computers to the handset easily done with the Windows Media Player 11.

Vice President Sales for Nokia Southeast region-Asia Pacific, Chris Carr, in Singapore, Friday ago, said, "How people enjoy the music is different in each region. With realize it, the Nokia 5800 ExpressMusic to give people the freedom to enjoy music they like the way they enjoy. "

Moreover, all the successful collection of downloaded into the user's collection. "Independence and the simplicity of this service not be able to. Comes With Music gives you unlimited access to millions in the collection and the Nokia Music Store songs then become the property of (collection) you. Its not a revolution if you do not make (the song - song) is a collection of songs you, "said Andrew Connel, Head of Category Management Enterteimen and Communities, Nokia.

After one year, if you still want to download the song again, people should buy a system with a la carte. Price a la carte packages will be determined later. Collection of songs on the Nokia Music Store, among others, comes from Universal Music Group, Sony BMG Music, EMI Group, and indie songs. In determining a reasonable entrance song catalog, especially for local songs, Nokia, among others, will in turn influences household popular song on the radio, local radio.

However, Nokia users can not enjoy free access to the Nokia Music Store. According to the plan, users in the region to become the first English can enjoy the facilities that began this Oct. 16. Meanwhile, users in the Asia-Pacific region are scheduled to go to the new facility is the beginning of next year.

Not just for the sake of music

The Nokia 5800 would like to offer what most people want to enjoy from a mobile phone that provides music, sound like a clear, powerful speakers, memory, and of course synchronization. The music phone is the result of the latest innovations that Nokia enables people to enjoy music wave with the sound quality is almost equivalent MP3 player.

As a music phone, this series is equipped stereo surround speakers. By using the stereo headset, the sound quality will be heard again more than the maximum. The Nokia 5800 has 8 GB internal memory plus microSD memory card 16GB. The batteries can survive 35 hours (if only set up the music) and in standby condition can survive 17 days.

Monday, November 10, 2008

Sony Ericsson C905 (1)



The Sony Ericsson C905 is set to become the new standard for camera phones when it's released in October (just in time for Christmas!). Forget the 5 megapixel camera phones of last year - the C905 comes with a huge 8 megapixel camera, some serious camera wizardry to get the best out of all those pixels, and a huge range of other features, such as HSDPA, WiFi and aGPS, as well.

First of all, an overview of the C905. It is, as you can see, a slider phone, with a keypad that's apparently extremely easy to use, and a simple sliding design that actually looks rather good.

It's not the smallest of phones, but then it wouldn't be, given the amount of features that Sony Ericsson's managed to cram into the thing!

Ah yes, the features - let me remind you of just some of them:

  • GPS and aGPS
  • Bluetooth™ technology
  • Modem
  • USB support
  • Wi-Fi™
  • DLNA™ support, letting you share your pics and vids wirelessly across hundreds of other devices
  • Video streaming, recording and playback
  • Bluetooth 2.0
  • MP3 player
  • FM radio
  • GeoTagging and mobile blogging features
  • TV-Out

Did I mention the 8 megapixel camera?! Yes? Well what about the following camera-specific magic:

  • 8.1 megapixel camera
  • Xenon flash
  • Auto focus Face detection
  • Smart contrast
  • Image stabilizer
  • Red-eye reduction
  • BestPic™
  • Digital zoom – up to 16x
  • Photo fix
  • Photo flash
  • Photo light
  • Video light
  • Video recording
  • Video stabilizer

What all this means is that the Sony Ericsson C905 isn't just a camera phone - it's actually more camera than phone, and is set raise the bar for camera phone when it launches in October.

Sunday, November 9, 2008

Phone Worth Rp 1.4 Billion Sold Out


TOKYO, WEEK-economic recession that runs most of Japan, but not for a handful of Japanese citizens who avidly collect luxury goods, including eight limited edition mobile phone contains of diamonds.
Softbank Mobile, Japan, Friday (7 / 11), report, eight limited edition cellular phones that contains of 537 diamonds from Tiffany and Co. sold out in just three days. The phone is specially designed and limited only made eight units in the whole world is sold around 13 million yen or approximately Rp 1.4 billion per unit on 1 November last. "Eight mobile phone was sold out on 3 November," said Katsuhide Furuya of Softbank Mobile.
Japan is known as the largest luxury goods market in the world, where almost all people from the 127 million population of Japan has a mobile phone. Tiffany and Co., the leading fashion companies, then design a mobile phone with a map diamonds behavior that hard only in three days. Earlier this year NTT DoCoMo Inc., the company's rival Softbank Mobile, also launched a mobile phone design of Prada, Italy, which is also hard behavior.

Leading luxury products, Gucci, also began offering expensive products that can only be accessed and purchased by Japanese citizens cellular phone. it is suitable if the phone that contains of diamonds is used to install the products made in Gucci.

Tuesday, October 14, 2008

Phone for aircraft Boarding Pass


One more advantage for O'Hare airport passenger in Chicago,
They do not need to involve comprised of paper as a sign of Boarding pass. Live show ponselnya screen that contains a bar code to the officer, and he can ascend to the aircraft. In the second airport in the world, the mobile phone service as evidence Boarding pass will be applied starting November 17. However not apply to all airlines. Meanwhile, this has been done is that Delta and Continental airlines. However, it is limited to those departing from Los Angeles International Airport and John Wayne Orange County.
To be able to use the service, prospective passengers must have an e-mail address is active, and also a mobile phone or device Featured Internet. For it to the device Boarding pass and 2D bar code will be sent. The process is simple: when the prospective passengers to report (check-in) through the airline AA.com site, he will be given the option to receive a Boarding pass in the mobile phone and Blackberry. If you choose option mobile Boarding, he will get an e-mail with a link to the Internet Boarding pass it. With these links, prospective passengers can download the mobile Boarding pass it, which include a bar code that can scan the dots and checks when they were boarding the aircraft. Unfortunately, the free of paper system is while only valid for one passenger per booking tickets. This means, if you travel in groups, for example, once, the mobile service Boarding pass this can not be used.

Tuesday, September 30, 2008

Google's Android mobile


This is e new information about google's technology, however, we know that google is the first Search engine in this world. By using this term, The T-Mobile G1 is the first phone to use Android,  the new mobile phone platform launched by Google.

According BBC News, The T-Mobile G1 handset will be available in the UK in time for Christmas.

The first device to run the search giant's operating system will feature a touch screen as well as a Qwerty keyboard. 

It will be available for free on T-Mobile tariffs of over £40 a month and includes unlimited net browsing. 

Other features include a three megapixel camera, a 'one click' contextual search and a browser that users can zoom in on by tapping the screen. 

The handset will be wi-fi and 3G enabled and has built-in support for YouTube. 

Users will also have access the so-called Android Market, where they will be able to download a variety of applications
Google announced its plans for the Android phone software in November 2007 with a declared aim of making it easier to get at the web while on the move. 

To help develop Android, Google also unveiled the Open Handset Alliance - a partnership of more than 30 firms that would work to make phone software easier to work with. 

The group includes operators such as Telefonica, handset makers such as HTC and Motorola as well as chip makers such as Intel and Qualcomm. 

Many of the partners demonstrated early prototype Android phones at the Mobile World Congress held in Barcelona in mid-February. 

The idea behind Android is to do for phone software what the open source Linux software has done for PCs. Developers of phone software can get at most of the core elements of the Android software to help them write better applications.

However, in launching Android, Google faces stiff competition from established players such as Nokia with its Symbian software and Microsoft with its Mobile operating system. 

More recently Apple has been gaining customers with its much hyped iPhone. 

The Android software is squarely aimed at the smartphone segment of the handset market which adds sophisticated functions to the basic calling and texting capabilities of most phones. 

Current estimates suggest that only 12-13% of the all handsets can be considered smartphones.

Tuesday, September 23, 2008

Exclusive: N-Gage camera games and GPS action Exclusive: N-Gage camera games and GPS action Click to enlarge


Sure, N-Gage is forging a fresh path on the portable gaming landscape, but we’ve just discovered that Nokia’s new gaming platform promises some seriously exciting twists on the journey ahead. Games that use your camera phone’s talents, location-based action, plus adventures that could tap into your contacts book contextually. Fact is, here’s a gaming service uniquely built on top-end convergence Nseries devices, all exploding with serious tech talents, and Nokia is dead set on exploiting these hi-tech features for the good of thumbkind.

We caught up with Will Shen, N-Gage Head of Production in North America (the guy behind all the first-party launch titles), who confirmed that they’re looking at creating games that harness the power of your built-in camera, GPS receiver and any relevant skill your handset may possess that could help inspire and execute innovative games. We’re talking titles that will enable you to take shots on your camera phone to interact within adventures! Shen explained an N-Gage game could potentially use clever techniques to interpret the histogram extracted from a photograph to interact with characters in a game. Shen’s example being, “a monster you could feed photographs”, presumably requiring you to take shots of appropriate real-life items while you’re out and about. Sounds like a crazily innovative approach to Tamagotchi-style games, but no matter how it’s realized the point is that Will Shen and the rest of the brains behind N-Gage aren’t just pushing the mobile gaming envelope, they’re aiming to fire the envelope out of a frickin’ canon.

Shen also stated that Nokia is seriously looking at location-based gaming via GPS, but level-headedly emphasizing that the “focus is on innovation”, and not gimmick gaming. Similarly, he echoed last week’s news of plans for touchscreen N-Gage gaming and even the possibility of first and third-party accelerometer-based games for Nseries devices with the capability.

So with around 50-60 games slated for launch on the N-Gage platform within its first year, we’re not going to be short of killer titles Shen promises. He assured us they’ll be no “filler content”, reemphasizing Nokia’s commitment to making N-Gage a truly innovative stomping ground for gaming. We’ve got itchy digits just thinking about it.
source:http://noknok.tv/

Saturday, September 20, 2008

Nokia Connection 2008: new E71, E66, N-Gage and Ovi platform

The Nokia E66 and E71 have both got security encryption, push mail, better options for enterprise solutions and also a revamped OS. The Nokia Connection 2008 Launch Party also saw a closer look at the new N-Gage and the more solid Ovi platform that lets you upload audio, photos and video for free…this has been said to be a Flickr killer.

It’s really funny when some new service or product is released and it’s automatically a Killer of the number one product or service because it has better options, if only it was that simple. We are still to see an mp3 player used more than the iPod and a service to beat Flickr. Other features of Ovi look good and include the ability to embed photos on blogs and create channels; other winners for Ovi are the better mobile upload platform and social networking aspect.

Nokia are also hinting about going into the mobile advertising business and this will be in the form of contextual ads, but this is a tough business especially with brands like Google already well on the way in that industry and with a trusted advertising brand. Currently not many details are being released about Nokia’s mobile advertising strategy but we hear it will be aiming at a simpler solution.

You can get the full coverage of Nokia Connection 2008 on CellPhone 9.
source :http://www.product-reviews.net/

Saturday, September 13, 2008

Nokia N95 Video Calling


Call up friends and chat away face-to-face with video calling on the N95

The Nokia N95 features a secondary camera just above the screen for video calling, however, to use this application you must first invest in a USIM card (an advanced SIM used in 3G mobile phones) and be in the coverage of a UMTS (3G) network.

If you have all of the above requirements then making a Video Call to someone else also with all of the above technology is simple.

From the start-up screen:

* Select the Main Menu button to the left of the directional keys
* Select Contacts
* Choose the contact you wish to participate in your Video Call
* Select Options then scroll down and select Video Call

The Video Call may take a little time to you will see the message “Waiting for a video call” when the call is successful you will see two video images and hear sound through the loudspeaker.

You can then chat away. All video calls are charged at a video call rate. For more information of this contact your network provider. Not all network providers allow for video calls, but with the growth of in-built 3G this is slowly changing. If you want video calling as a main feature of your phone then check with the manufacturer and your provider that it is possible.
source:http://www.knowyourmobile.com/

The Orientation: The differences between GSM and CDMA

It’s come to my attention that not everyone understands the subtle yet significant differences between GSM and CDMA. We’ve received random e-mails from folks asking how they can get XY phone from AT&T to work on Sprint’s network and it makes me scratch my head. My first instinct is to curse and hit the Spam button, but I slowly realize this individual just doesn’t know the difference. It’s not their fault. In our line of work we don’t always remember that everyone is as savvy or immersed in tech on a daily basis. For this we apologize. To make up for our indiscretions here is your Orientation for the week.

A few people I spoke with knew that the main difference had something to do with a SIM card, which is the Subscriber Identity Module card. Said SIM cards are used in the US by T-Mobile and AT&T. I’m hoping most of you know this already. Here in lies one of the positives for subscribers with GSM carriers. You’re not tied down to a single handset that’s attached to one network like you are with CDMA carriers/phones ie Sprint and Verizon. It’s quite evident with the mayhem surrounding the iPhone. That’s the bare bones difference.

To be exact, GSM stands for Global System for Mobile Communications, which is based on an older standard called TDMA, which we won’t get into. CDMA stands for Code Division Multiple Access. Neither of those terms is very easy to digest at all, now is it? Without getting into the nitty gritty of it, simply because you needn’t worry about it, I’ve broken it down as best I can for you (and me) to understand. If you must know the technical specs then I have one morsel for you to chew on: they share bandwidth differently. GSM allocates a bit of bandwidth for each user on a local network and they can do as they please, whereas with CDMA each device gets a chunk of bandwidth only when they need it.

Some say that CDMA is a superior technology for the following reasons: It allows for more users across a given frequency because it’s only being used when needed, and because battery life on CDMA phones is far superior to that of any GSM device because it’s not transmitting anything when sitting by idle.

Those are the two main factors and I could talk about the cancer causing aspect of mobile phones, but we’re beyond that and everything causes cancer these days.

However, GSM’s constant contact means that acquiring a signal isn’t as tricky. When a CDMA phone connects to the network, it must negotiate with the local tower what phone it is, what service, what number, etc. This is that pause between when you hit “send” and it starts ringing. The more interference there is, the longer this takes. With GSM, that’s taken care of when you roam into a tower’s area, the phone is “registered” with the tower already and starts transmitting much faster. Also, the already-connected state means that GMS can work in areas (such as elevators, underground) where CDMA generally can not.

The only downside to CDMA at this point in time is it’s lack of mobility across continents. GSM networks are used in more countries (roughly 3/4 of the world market) than CDMA so roaming is hardly ever an issue thanks to that SIM card.

In terms of data transmission, GSM has the upper hand with HSDPA as it is capable of transferring up to 7.2 Mbps while EV-DO Rev. A can only muster 3.1 Mbps. A GSM signal can also be shoddy at times depending on where you are. For instance, in Manhattan AT&T doesn’t get the best coverage while Verizon and Sprint are rock solid. In my experience T-Mobile works perfect in the city, but not very well out on Long Island. It also depends on where you live in the country because in the Bay Area, AT&T is a champ while T-Mobile eats it. In general, CDMA carriers are more reliable nationwide because of the larger tower footprints.

The overall point that you should take away from this is that you need to assess your current needs if you’re in the market for a new phone. Will you be traveling or staying home? Of course, CDMA providers like Verizon are releasing dual-band phones like the BlackBerry 8830 World Edition that allow for a SIM card when you travel overseas, so it may one day be a moot point. Be sure to check the network coverage in your area as it differs from region to region. Voice/data plans and hardware themselves are going to be the biggest factors in your decision. Do you want better coverage (Verizon), better phones (AT&T), cheap plans (T-Mo) or faster data (Sprint)?
Source:http://fatmatrix.com/

3G

3G is the third generation of mobile phone standards and technology, superseding 2.5G, and preceding 4G. It is based on the International Telecommunication Union (ITU) family of standards under the International Mobile Telecommunications programme, IMT-2000.

3G networks enable network operators to offer users a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency. Services include wide-area wireless voice telephony, video calls, and broadband wireless data, all in a mobile environment. Additional features also include HSPA(High Speed Packet Access) data transmission capabilities able to deliver speeds up to 14.4Mbit/s on the downlink and 5.8Mbit/s on the uplink.

Unlike IEEE 802.11 (common names Wi-Fi or WLAN) networks, 3G networks are wide area cellular telephone networks which evolved to incorporate high-speed internet access and video telephony. IEEE 802.11 networks are short range, high-bandwidth networks primarily developed for data.
From Wikipedia, the free encyclopedia