3D Video Camera
This is one of the most innovative things I've seen in a while - it's a camera that can take 3D images (still or video) by using laser range finding (LADAR) to build up a 3D model of a scene.
At full speed the camera collects 500,000 range points per second using a 1.57um eye-safe laser that has been successfully tested at distances greater than 5km.The entire system is the size of a shoebox and weighs only 12 pounds.
There is a Google Video Tech Talk which goes into much more detail about how it works. via O'Reilly