This is cool. It reminds me of a research team I worked in a few years back that had built something like this for mobile devices. It used a camera overhead to

This is cool. It reminds me of a research team I worked in a few years back that had built something like this for mobile devices. It used a camera overhead to provide info about device positions, allowing all the devices to act as a single screen on a surface [0]. [0] http://www.huddlelamp.org/#tech-video http://www.huddlelamp.org/#tech-video