Which is exactly what makes it the most useless client for me, and I would imagine a massive percentage of others. In reality how many people care/use video & audio chat. For the vast majority it's about having text chats with friends who will be using aol/msn/yahoo/blah.BornAgainMac said:iChat AV is the best messenger by far. Not for the text chat features but for clear video and audio chats with other pure .Mac customers.
Adium rules the roost, unless you do happen to be one of the few that actually wants video/audio chats.