Guys, the thread title is Best iPhone Games 2008. Sim City 3 just came out not too long ago. If you want to include that, might as well throw in Zenonia and Wolfenstein.
Back to the OP's list, I would say that Rolando deserves GOTY for the iPhone. It's charming as hell, plus very fun and challenging, yet simple. An amazing game even for $9.99 (that's what I paid), but it's a fraction of the price now. If you don't have it, snag it up, and get ready for the second one coming later during the summer. I know I am.