Something that I didn’t know - but testing over coffee with buddies does wonders - is that iChat AV will do video over Jabber to another iChat client. So while Google doesn’t officially support video over their Jabber implementation, two clients both on iChat can do it. Or more than two - though we couldn’t test that out. My best bet is that we’re dealing with a direct connection - but who cares? Video goodness without the need for AIM or .Mac =)