Microsoft's surface computer - a paradigm shift in computing and personal interaction?  The surface computer utilizes a series of infrared cameras to “see” what’s on the tabletop surface so it can recognize what’s on the surface and interact with it. 

For instance, without wires or synching, you can immediately transfer a digital picture to the tabletop or to a cell phone.  Or order a beer.  The intent is commercial application first such as casino's, but could your your workplace wall become the next usable interface display?

Cool stuff - even if it has been around for about a year now.