Puzzle Brainiak is a series of little puzzle games (kind of like the classical soduku, mines) you can pop up on your phone/tablet to play for two or three minutes while you take a break from whatever else you were doing.
iPhone/iPad/Android causal gamers.
The icon should convey the idea of little brain teasers (like brain, cogs, Einstein cartoon, etc.). We love duotones, but full color options would be considered too.
The splash screen will be used to draw the puzzles on it, so it should be dark. Typically a black and grey large version of the icon would suit perfectly.
The icon should look good at the following sizes:
114x114 (iPhone 4)
72x72 (iPad/Android hdpi)
48x48 (Android mdpi)