I'm warning you. It's really stupid, but sometimes stupid is funny. It started out as a way to learn how to develop for the iPhone. However, after showing it to a few people for a laugh, they started saying things like "you should make that into a full-fledged app". More cowbell is one of the most popular apps, and all it does is make the sound of a cowbell. I have a feeling that the iPhone nerd community would love their iPhone to fart on command.