MIT Media Lab's LabCAST: Junkyard Jumbotron - Turn multiple devices into a large interactive screen
The Junkyard Jumbotron lets you take a bunch of random laptops, cellphones and tablets and stitch them together into a large, virtual display, simply by taking a photograph of them.
MIT, once again. This made my jaw drop. Take any screen from any device in any configuration and somewhat easily turn them into an interactive jumbotron. Think about that for a minute. Can not wait to play with this.