Eric Gradman, Tyler Bushnell, and I have been collaborating on a platform for social gaming that uses a handheld wireless RFID reader and a bunch of RFID tags scattered around a venue. We tested an early prototype at the H+ conference the beginning of December and will bring the next revision to Mindshare this week. My favorite aspect is the flexibility. The number of sensors and outputs we put on the puck allows for a broad array of possible games including various scavenger hunts, puzzles and competitions. A video and more technical breakdown is available here.
Update: We were covered on Makezine, Hackaday and Engadget!
[nggallery id=19]