iphone 4 just announced.

[Blueface]

Originally Posted by Sawyer

Just so people don't get confused, it is not 4G. The iPhone 4 still works on AT&T's 3G network. Also, most of the non-hardware upgrades will be available with the free upgrade to iOS4 to anyone with a 3G, 3GS or iPod Touch.

True, but some of the features of OS4 will not work on the 3G model. You won't be able to multi task for one. A few others too that I don't recall off the top of my head.