I/O Brush is a new drawing tool to explore colors, textures, and movements found in everyday materials by "picking up" and drawing with them. I/O Brush looks like a regular physical paintbrush but has a small video camera with lights and touch sensors embedded inside. Outside of the drawing canvas, the brush can pick up color, texture, and movement of a brushed surface. On the canvas, artists can draw with the special "ink" they just picked up from their immediate environment.
Quoted from: I/O Brush: The World as the Palette
After seeing Paul's photos I thought immediately of this. Now this is painting with light. Wow. You sample from the real world with the video cam built into the brush, then paint with it, like described above. But also, you can sample animated elements. You have to watch the video (linked at the bottom of that page) to really understand how amazingly fun this thing looks. You should be able to make little ones to work with tablet PCs or whatever. Wow.
A cop or a cup?
DWO?