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The Kinects can read up to three people on each side, and you can see others through the Cube, which acts as a portal, virtually connecting people who are separated in physical space.
http://www.wired.com/2008/11/eye-contact-tra/
I would expect this to be a hit in Japan where shyness is apparently a taller hurdle to overcome than most of western social norms.
http://travel.cnn.com/tokyo/shop/miteru-dake-videos-stare-ab...