Facebook has updated the Facebook SDK 3.1 for iOS, adding the ability to integrate Facebook in iOS 6 as well as other new features. Apple has added several new native features in iOS 6 including Auth dialog and view controller (share dialog). The Facebook SDK supports the use of these APIs.
Social influence ranking service PeerIndex now provides more granular rankings of users. Besides the overall influence score of a user, called PeerIndex (PI), the service now provides the so called ‘topical PeerIndex’ (tPI).