The new Facebook has a lot of new features. For example, you can go offline in chat. You no longer have to go into small talk with people when you only intended to check your notifications.
Also, there was a bug with previous version where your friend request notification would light up excitingly only to discover that it was just a false alarm. That is now fixed. You will get notifications only when you have an actual friend request.
Your list of friends now always includes all your friends and your name will be displayed correctly.
You also get to change your language to Czech, Danish, Greek, Indonesian, Malaysian, Norwegian (Bokmal), Portuguese (Portugal) or Thai.
And finally, version 4.1.1 brought support for Retina Display graphics for the iPad3.The Timeline looks magnificent.
Download Facebook for iPad and iPhone