Well, I just got the 4th gen, it has some pretty quality (Though very small/short games, some are bigger though.) games on it. I'm addicted to Tiny Tower!
You could try Zenonia if you haven't.
It's a nice Action RPG.
I tried it but had to delete it to put some more music...
EDIT: Wait... This is the Anniversary Topic... We're WAY out of topic...
Maybe an iOS topic should be made in Gaming General...