Very cute!
BTW-- I have an iPod Touch and was disappointed that I couldn't use Ocarina since I'm an amateur/pro musician and liked what I had heard about that app.
I just found out that you can now use it on a Touch too! A recent (?) update lets you use it, although you don't have breath control to articulate the notes-- you have to do that only with your fingers, bagpipe style. For 99cents, it's a whole lot of fun, once you figure out ocarina fingering (which luckily I already knew since I have several real ocarinas).