I developed a web based video calling system to work over peer to peer.
You can test it out at
http://ubcam.com/video_caller/video_caller.htm [its unskinned or connected to any database].
Simply register for a username - login - then get a friend to do the same so you can call them.
The system only works on Internet Explorer at present but Firefox is on the way.
Basically the idea is that dating sites and others will install this so their users can initiate FREE calls on their website without having to use skype.
I would be grateful of any comments posted here.