There are many iPhone app in app store.Facebook is one of them.Facebook has just updated it’s version to 3.2.1 for iPhone to fixes bugs.
It comes with several new features.
Facebook for iPhone makes it easy to stay connected and share information with friends. Use your iPhone to start a conversation with Facebook Chat, check your friends’ latest photos and status updates, look up a phone number, or upload your own mobile photos to Facebook while on the go.