Isn't it funny. I have that with my touch phone. Then they get so used to it that they start to touch other screens and expect the things on the screen to move.
Some people are saying that by the time they grow up that keyboards will be an ancient relic.
What other applications have you tried? On the phone, my kids love Sneezies, which is a bubble-popping game, and Melody Match, which is like the game where you memorise the position of cards to make matching pairs, butwith short musical tunes instead