Video conferencing seems to be ruled now by patents; most annoyingly, they're usually software patents. These are of course, vague, poorly enforceable, creativity-blocking, money-driven wastes of time holding back technology. Even big corporations are avoiding doing anything exciting in software in case someone's already told their lawyer about some dream they had.

The actual video side of things is a strange sign of the times, Most companies are not going to put this out because they don't need to. Normally, other companies would rush to catch up, but these are probably now avoiding it, even though they could use open standards, because someone entirely different could spend a pretty penny all over all of them.

The iPhone 3G is also very hackable, so everyone should already be video conferencing. I've read of people Linuxing them. Video conferencing is a feature that should be everywhere already for virtually no cost.