Taken from the Apple website - click on external link above - iPhone 3G. With fast 3G wireless technology, GPS mapping, support for enterprise features like Microsoft Exchange, and the new App Store, iPhone 3G puts even more features at your fingertips. And like the original iPhone, it combines three products in one — a revolutionary phone, a widescreen iPod, and a breakthrough Internet device with rich HTML email and a desktop-class web browser. iPhone 3G. It redefines what a mobile phone can do — again.
Not sure I can resist any longer