Hi all. I am not a developer, just an avid iphone gamer. I am writing this to let you know, and tell the TA staff, that you should remove the Game Center REQUIREMENT from all your existing - future games. Why? Because for a lot of users - just check the General forum, GameCenter Bug threads - Game Center is stuck, it will not open. So, when a game requires Gamecenter to load up front, we cannot even start the game. A lot of recent releases suffer from this, as well as major titles - like Implosion. And because Apple doesn't seem to do anything about it so far, it's up to you, the developers, to remove the required GameCenter, and up to the TA staff to put an article out and let everyone know. Thank you for your interest and work on ios gaming everyone, and a good Sunday to you!