This update to the original iPhone adds 3G data, GPS, and a new shape on the back side. An updated OS supports third-party software, plus corporate email, sync, and VPN features. Other features ...

but this iphone is simply amazing. its only a little step up from the 3G so if you are fine with the 3G then i wouldnt break my back to get one since you can have the same OS 3.0 and same features ...