Crayon Physics. The Incredible Machine (TIM) goes tablet?
Bloody brilliant! I don't know how many of you remember TIM from Sierra? The game where you get to string piles of gadgets together to pop the balloon or get the bowling ball to land in the bucket? Lots of fun. And could definitely "pass off" as educational when we were younger...
Here's the next generation. Crayon Physics. A tablet version where you draw your tools. Awesome.
That's a geeky 8 out of 10! (Thanks Iwan Pienaar for the tip off).