&#a hundred and sixty;9to5Mac has discovered a number of icons within the SDK that s
eem to "point out that there will likely be video calling on an iPxxx instrument.
That there image is from the SDK, and all but hits you in the face with two icons that mention "accepting" and "declining" video.
Parsing the evidence further, we discover this, a more direct mention of "video chat" in the telephony UI code:
So video chat on the iPhone. Probably coming soon, at least in code form. But what of the heavy strain on AT&T's 3G network? One would think that video chat via millions of new iPhones would tax the hell out of an already taxed system.