Out of all the TED videos I’ve seen recently, I have to admit — ‘Johnny Lee: Creating tech marvels out of a $40 Wii Remote‘ is one of the most amazing videos I’ve watched. He combines sophisticated software with non-expensive hardware and a Wii mote to create amazing educational tools; such as $50 electronic whiteboards, multi-touch interfaces, and 3-D head-mounted viewers.

Best of all, the software he used on the demo is free to download from his site, so you can do everything he did with a Wii-mote.