Thanks for the much anticipated mac client.... I just got out of my first video conference with 4 people in CA, KY and Prague and the mac client worked flawlessly. Little bit of lag but I had expected that.
The only problem I noticed: I have an external Logitech Quickcam pro 5000 as well as a built-in isight camera, and when going into the preferences->camera screen I had two cameras listed: 'IIDC FIrewire Video' and 'USB Video Class Video'. However, when I test the cameras they both displayed the picture of the built-in isight. I had to go into the camera settings for the USB Video camera and change the source to "Logitech Camera" first before I could view the Logitech video stream. But after that I could videoconference just fine with the Logitech cam. So just a little confusing to set up but in the end it still worked.
Another minor thing: even though I had turned the camera off in the meeting, I wasn't able to go into the preferences screen and change or test a camera during that meeting... It kept saying 'camera in use' while strictly speaking it wasn't in use at all. I had to exit the meeting entirely before I was able to tweak the camera settings.
overall nothing critical. We all agreed that Oovoo kicks Skype's ass for video calls.
Peter