A smart phone
offers advanced capabilities, often with PC-like functionality. There
is no industry standard definition of a smart phone. According to a
authorized report, apple iPhone account for 13.7 percent of market
share of smartphone operating system sales. Apple's iPhone is one of
the best-selling smartphone in the world.
The new iPhone 3GS has been announced, but it sure looks the same as the old one...what's changed, and why does it now cost that bit more?

For those that still wonder what the differences are between the iPhone 3G

and the new iPhone 3GS should check out the following comparison list
to have a glance at the nips and tucks that Apple have made, and scroll
down past it to see why many are calling it the best iPhone yet!.
Detailed words about the difference between iPhone 3G and iPhone 3GS:

Speed: Okay, first and foremost, the iPhone 3GS is
faster. Much faster. So... the 'S' stands for speed, and the 3GS is
faster. If going online, or just generally was feeling the old iPhone
to be a tag sluggish, this new one has a shot of nitrous injection
where it counts.
Camera: 2 megapixel fixed focus lens is replaced by
a 3 megapixel auto focus affair. Macro mode, auto exposure and auto
white balance are the order of the day on the iPhone 3GS,
spelling an end to those grainy no-frills iPhone pictures. Video
recording is also a new feature, with 30 fps VGA capabilities, as well
a mini editing suite right on the phone.
Voice Control: Voice dialling, voice support for
the iPod and VoiceOver (text to speech) fresh from the iPod Shuffle
gives the iPhone 3G S a futuristic bent. Want to play a particular
playlist, or hear songs from a particular artist? Simply hold down the
'Home' button, and let the phone know what you want!
The remote is also an inheritance from the iPod Shuffle, giving more control over your music by skipping back and forward through tracks...
Increased Battery Life: The 3GS offers more hours
battery life on 2G calls, an increase from 6 to 9 hours battery life on
Wi-Fi, and a boost from 24 to 30 hours of audio over the iPhone 3G.
There is a trade off, however, with the 3G S being 2 grams heavier than
the iPhone 3G. A small price to pay for what is a notoriously thirsty
handset, we think...

Digital Compass: GPS just got better, as the
iPhone 3GS adds orientation to location accuracy. Google Maps turns to
the direction the user is facing, and turn-by-turn instructions can
become a reality.
Move to the conclusion: the iPhone 3GS is an evolution rather than a
revolution, refining the iconic handset to play to its strengths better
than ever before. 3G owners might not be missing too much, but there
are plenty of reasons for first-timers to take the plunge with Apple's
new device!
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Meet the fastest, most powerful iPhone yet. iPhone 3GS features video
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More at review blog.