real time 3D paintings in galleries and something called the Wiispray, and now we have Eyewriter. An ongoing effort by a group of graffiti artists from around the world, this open source project has designed and built a low-cost eye-tracking system to enable people like Tony Quam (a.k.a. TEMPTONE), who is paralyzed, to create artwork moving only his eyes. But that ain't all -- the group also designed a "mobile broadcast unit," which is essentially a low-powered, networked bicycle capable of projecting the business onto the side of a building (or street sign, or train). The kids responsible for this heartwarming example of "eye vandalism" promise that how-to materials, software, and the like will all be available soon, but in the meantime check a video of the thing in action after the break.