Facebook 3.1.1 for iPhone causing more problems for users?
There are even other problems with it such as users getting an “error” message whenever they’re commenting on a picture. You’d think with the release of version 3.1.1 that all the new features would be ironed out to provide a seamless experience right? Well, the scenario is proving to be a little different with many users on the fence with the app – it’s giving them more headaches than anything else. We’d probably expect these issues to be addressed soon with yet another minor update.
source: The iPhone Blog