iPad games for cats?

I'm not sure I would want to run the risk of either of my cats damaging my iPad, if I ever bought one. Poor little Buckwheat is trying to find something under the iPad when patting on the screen doesn't help. It's not exactly catching a mouse or a bird but it is some activity. According to this USA Today "article" (that closely resembles ad placement for Nestle-Purina) they've had over 500,000 downloads. If you have a cat, would you try this? (John did with his dog Sasha, with interesting results.)