http://www.todayandtomorrow.net/2009/08/03/sticky-light-scorelight/I saw this on an art blog today, it's an interesting take on augmented reality gaming. Probably most of us have seen the video of the zombie-shooting game on the prototype (?) NVidia handheld, this is similar but more of an art project and much simpler technology!
It's interesting to me because of it's minimalism. Just a laser pointer, two gimbaled mirrors, and a simple photosensor.
It looks like you can set the device up a few different ways, and then easily create game boards out of black and white shapes. So for instance, one mode seems to be vertical where the laser dot wants to fall downwards, but bounces when it hits something. You can even use your hands as flippers to send the laser dot back up, ala pinball. Cool!
ADDENDUM: I just realized, this technology's true destiny: the penultimate cat toy!