Cool iphone widget

Scenario:Your right hand is holding your child's hand, he/she is whining about feeling bored in the MTR; your iphone is in your left hand. What do you do? Do you have enough cool widget handy to keep your kids occupied? (in a fun and educational way - popping virtual bubble wrap is NOT one, obviously.)Check this out:The application is inspired by the famous Jackson Pollock website:Even Steve Jobs