I hadn’t heard of this until I saw a digg video about the Deluxe Version.
Crayon Physics is a game with a simple concept. You draw on the screen with your mouse, stylus or other pointing device and attempt to get your red circle to the stars.
I find most of the fun is in drawing in crayon on a screen and making boxes fly all over the place and explode in interesting ways.
With enough levels and interesting puzzles I think this might make a great Nintendo DS game – especially if they found out some way of taking advantage of the second screen.
The soundtrack is extremely fitting and it’s available under creative commons licence.