The iphone 3GS released new version such as  unlocked and SIM free,the iphone 3GS version with  16GB  of the iPhone 3G slightly more expensive than the 8GB of music but is equipped with a memory capacity twice.The iPhone 3GS 16GB white with color display. With speed 3G wireless technology, GPS with maps, support for enterprise features like Microsoft Exchange, and the new App Store.The iPhone 3GS is equipped with features extraordinary reach your hands. And like the original iPhone before,the  iphone 3GS combines three products in one - a revolutionary phone, widescreen iPod, and a breakthrough Internet device with rich HTML email and full web browsing. 3G iPhone more and more perfect.