at CEWS this year (and last year too) they held a conference using projectors, computers and a videocamera for "teleporting" a keynote speaker from Europe to Las vegas. There was a videocamera on each end to show him the audience and to show us him, and using the computers and projectr we were able to see a 1:1 scale projection of the man while he was speaking. The good doctor even told jokes, and interacted with the audience fairly well and without lag. and with the sound system they set up he could hear everythying in the room. They also had a laptop using stereoscopic viewing whic can be found here
http://www.wired.com/wired/archive/1...ools.html?pg=1