Originally Posted by Amenbrother
It does? Whenever I dont have a good connection my achievments and things like that dont sync up right when I unlock them with no internet connection.
Gamecenter works offline, but it seems like whether it syncs up correctly when it gets online is quite another thing. I remember when GC was first introduced, you must be online for it to log achievements. Now it logs achievements even if you are offline, then syncs up when you get online, in most cases. I think it depends on how the game devs implement GC features into their game.
I don't care for it myself... like you, a lot of my game achievements aren't registered correctly.