Researchers in the UK have put together a prototype wrist-worn sensor that turns your own hand into a 3D movement controller for almost any device you can think of.
Experts from Newcastle University and the Cambridge-based Microsoft Research used off-the-shelf parts to assemble a sensor that straps to your wrist and detects movement of your arm, hand and fingers. There’s no need for any external sensor, nor for line-of-sight to the device you’re controlling. Everything’s done using the technology you wear.
Here’s a video that explains more..