iChat
I expect that Apple's video conferencing solution will be integrated with iChat.
It seems most video conferencing apps today use chat applications to overcome the problem of identifying machines which have dynamic, ie. often changing, IP addresses. I believe MS NetMeeting for example, uses Passport - same as their internet messenger.
iSpQ (available for OS X) uses a similar system, ie. you have to log into their chat 'community' to video conference, and create buddy lists of your friends.
So internet messengers and video conferencing apps both need to solve the problem of dynamic IP addresses. iChat uses a .Mac email address to do so - effectively solving the dynamic IP problem for both internet messenging and video conferencing.
So I expect Apple's video conferencing will be a new feature of iChat. Sounds wonderful!
However, the downside is the possibility that we will have to buy into .Mac just to get an email address to use iChat, ie. if you don't have any other use for .Mac, iChat may end up costing $100 per year - which raises the inevitable question: do I really need video conferencing?
Amelia