So recently, I've look at some games to play, and so far, there's a good amount of good games for the iPhone.

I've played so far:
Alive4Ever: bird's eye view zombie killing shooter. kind of like cs 2d. Interesting missions, and good mix of guns. 5stars

Medieval: A castle defense game. lots of skill and accuracy needed and fun weapons and upgrades. 4stars.

Pocket God: Mess around with little people on your island. Pretty much a small scale sim with some fun minigames but gets boring quick. They do update fairly regularly though. 3stars

Modern Combat: Sandstorm: Have yet to play this much, but shows lots of promise as fps.

Sheep launcher plus: Fun at first but then just becomes an endurance test. little replay value. 3stars

Space Deadbeef: sidescrolling space fighter. Very fun though the levels are the same with harder enemies. But free. 4stars

Fieldrunners: Tower defense. Very deep, very tough, and very fun. 5stars

I have a few others but i don't get too much of a chance to play them. Do you guys have some favorite games for your iPhone or iPod Touch?