Engadget has a friend who has a friend who got to play with the new 3G iPhone. They have some specs. All seem legit to us:
The first thing people will notice: the 2nd gen iPhone will be about the same size and shape as the first gen.
It will, of course, have 3G. And proper GPS!
The most noticeable physical difference is back of the phone is no longer metal -- the whole thing is glossy black, from top to bottom. The volume buttons are now chrome.
Because it's got a little less metal to deal with, it doesn't have quite as many angular edges. The battery is (still) not removable.