I hacked my iPod Touch the second day I owned it, so that I could put new applications on it. So far, my favorite by far is Lights Off (an awesome game where you have to turn all of the blocks dark), and my second is iPhysics (a physics simulator where you can create objects and try to get one object to a goal).
I tried to use Stack, which puts Leopard-esque stacks on the iPod Touch, and was very cool but it had this annoying problem where it stays on top of other applications once they’re launched. So I tried to uninstall it, but it kept telling me to remove the stack before uninstalling. I tried that, but it didn’t work, so eventually I had to use ftp to remove them.
Oh well…Still, a lot of good stuff…Yes.