Tmack writes: While hard-hacks with the Wiimote is somewhat Old News, this particular implementation is quite interesting. Using the infrared camera on the 'mote, pens with LED's instead of ink, and an LCD projector, Johnny Chung Lee of Carnegie Mellon University has created some software to use them as a cheap (relatively speaking) multi-touch display. Any surface you can project onto becomes an interactive multi-touch display, as demonstrated in the video in the page linked above. He has the software available for download from his website, along with some other neat projects.
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