Full user review
"Multiple video streams and collaboration and sharing"
Lets you have up to 8 (16 I think if you get the self hosted version) video streams and still share applications. One of the few products that I have found that let you do this. One-to-One is free; otherwise the presenter must be a paid client.
Some features still in development. If you looking for a free replacement for Skype this isn't your baby -- more for group collaboration with video.
I like it. UI was a little different and some firewall changes might be needed.