Here's where I threadjack and say that I love Facetime. It's the only video/voip software that I've found to work great over both my high latency satellite and my abysmally slow (128k?) DSL connections. Sometimes there's a short delay, but video stays good and audio doesn't get choppy or break up.

I really wish they'd spend some time making it a bit more robust. At minimum, I'd like to have a way to see a user's status. Also, for the Mac version, a quicker way to add users than going and starting address book and adding a new entry.