Thumby - The Tiny Playable, Programmable Keychain

A so cool experience right to Brazil!

Funny Little Game

Bought for my son. He loved it. Unfortunately stopped working after about a week. Don't know why, no obvious signs of damage, but frankly could have been something my son did to the game. Great novelty item.

Fun

What a fun device. You can impress friends at parties with it. I can recommend building a simple wireframe 3D engine, just use mapping (x,y,z) -> (X = x/z , Y = y/z) , where the latter are screen coordinates.