The Facebook app is one of the worst ever designed/written for iOS. With that said, it worse on iOS 5 - it's has become completely unusable. It refuses to update, and I can literally watch my battery drain while trying to use it. Uninstalling and re-installing it is good for ONE update, then the problems start all over again.
Originally Posted by jsntrenkler
I can also confirm that it is at least usable on my wife's iPhone (iOS 4.3.3). I've been looking for an alternative app so I can trash the "official" FB app completely. (And there aren't even words for those clamoring for an "official" FB app for the iPad.)