Have you tried the GameCenter App from GameFly?

Pretty slick app, I just saw this on the GameFly Fan page...

GameCenter v1.1 is now available! We've
recently released update v1.1 for GameCenter to give you more of what
you've been asking for. Besides complete game info and news for over
5,000 titles, GameCenter now has:

* Official game trailers
* Image galleries for games and news
* More news articles per platform
* Improv...ed speed and performance

"The scale of the information contained in the app is definitely useful for gamers, and is much more intuitive than your average gaming site on the mobile platform." -MacWorld
Download the GameCenter App today! Rate it, review it and share this with your friends.