iPhone projector graffiti

The Zeptotools blog posted this demo of an iPhone application they are hoping to release. I haven’t used the application or seen it outside of this video, but I like the idea of adding whiteboard features to the iPhone by sending screen data to a nearby laptop with an attached projector.

What would really be something is if someone extended this idea to allow multiple iPhones to draw collaboratively to a single projector screen.

Zeptotools developers blog