This is a quick video of a boy drawing on a wall. Wait a second: he’s drawing with light. It appears to be the same technology that allows SMART boards to work, where a projector and a whiteboard work in tandem to allow changes to appear on screen where a user makes connections on the whiteboard. The business meeting applications for SMART boards are fairly obvious, like making markups on a powerpoint slide, saving those markings to a file for review later, etc., but this has a much simpler killer app – using light as a fun way to make marks on a wall. However, I could see someone like Bill Viola or Bruce Nauman making great use of this as a serious art making tool.