The iPhone 3GS is the third-generation smartphone from Apple. The 3GS has a faster processor than the iPhone 3G, more memory, a new graphics chip and added copy/paste, new search features, Stereo Bluetooth, Push Notification, and additional built-in apps.
The emphasis of the iPhone 3GS was speed (that's what the "S" is for). Applications start faster, games run smoother, and the entire iPhone experience has been made zippier compared to the iPhone 3G. This is due to hardware upgrades in the 3GS; the processor speed has been bumped up by 50%, the RAM has been doubled, and.
The iPhone 3GS also has a 3MP camera with autofocus for sharper, clearer photos. There's even a macro mode for taking shots close-in. The camera shoots 30fps VGA video, too, right from the Camera app, and you can edit the video on the iPhone before saving or uploading.
Voice Control is now part of the iPhone; just hold down the Home button to make calls, control iTunes and more by speaking commands. This feature is part of the OS 3.0, but will not be available on older iPhones.