Use Data and talk at same time(SVDO) coming soon!

[k_semler]

As long as both the caller and the callee are in HSPA covered areas, Video calling is indeed possible. But how are you going to know whether whoever you called is in a 3G area? That's probably why front facing models have not been released stateside. If it was, everybody would be expecting to be able to do it regardless of the network they are connected to. Since most people are technological baboons, this functionality gets left out. The closest that is currently available is ATT's "Video Sharing".