[ame=http://www.youtube.com/watch?v=sKXPpPakDPM]YouTube - App: NHL 2K11[/ame]
Just d/l'ed this from the App store for 1.99 and I'm having a blast with it. The graphics aren't very good but the game is surprisingly deep. It includes, line changes, trades, a salary cap and a full 82 game season.
Here's a more in-depth review:
NHL 2K11 Review – Games, Reviews, iPhone Apps and Games – 148Apps – iPhone App and Game Reviews and News