I'm already bored with this design. The change is not that different than the iMac, iPad or the MacBook Pro; so this design is consistent, predictable, and not really that exciting. Of course, what's under the hood is what is going to drive people trade in their old iPhones anyway. Waiting what seems like an eternity for my 3Gs to update every time I plug it in drives me nuts, meanwhile the iPad with it's A4 processor smokes. Updating the wifi to 802.11n will be sweet too.
Not that appealing! Guess its because the model is a prototype.. but it looks like a LCD?!! having a lite white appearance when seen from sides.. I read iphone 4g will have AMOLED!