The Facebook app for iOS has received an update yesterday. New is the ability to send messages from your news to share with a tap on the "Share" link. This is already present on the iPad, but the iPhone is only visible if you set the language to English (via Settings> General> International). Earlier today you could read that also on the mobile website of Facebook More share options were added. Another change is that you now smileys, hearts and emoji can use in your posts, though not everyone that as an improvement.
It is now possible to your friends in messages, comments and photos to tag. And tap the button in the left sidebar next to the News you can now sort the news on different criteria.
Download: Facebook (free, universal, iOS 4.3 +) Here: http://bit.ly/RyrmXm