The device you're looking at above may be a prototype for the future of how we interact with our machines. Inspired by the Kinect, Microsoft's Digits is an experimental input device that tracks minute finger and hand movements and uses them in lieu of mouse, keyboard of game controller. It's what you imagined the Nintendo PowerGlove was, except it's real.
The Digits rig puts an array of LED lights on on a bracelet, and bounce their light off a user's fingers. A laser shines across the hand, highlighting the position of the fingers. Then, a camera reads the reflections, sends it to a computer that builds a model of the hand that's accurate to within a hundredth of an inch. In other word: A miniature Kinect that only focuses on reading the data input from your fingers.
Right now, the device is a bit bulky, and it needs to be wired up to a computer to work, but the plan is to make a wireless version and shrink it until it's around the size of a watch.
I'm sure you could see the massive, revolutionary potential of this device, if it's perfected and feasible. Combine it with Google Glass for a full on, Minority Report, sci-fi future experience. Control everything in your house with a few shakes of your finger. It's a motion controller that would actually make hardcore games easier to play instead of harder.
Check out this video of the device in action:
(Photo from Engadget)
Source: New Scientist