TripAdvisor Facebook Android SDK by TripAdvisor. Allows to integrate travel functionalities into Facebook applications with the aim to engage users socially. Includes documentation to login, sharing, AppLinks, and Graph API. Authored by Kedar Sarmalkar. For more information, visit https://developers.facebook.com/docs/android
After four months, Facebook is set to open its timeline actions to developers this week, according to AllThingsD. The feature is an addition to the Facebook Graph API that allows developers to assign verbs for actions users perform within applications. For example, how users now "like" things, they'll also be able to "read" articles, "play" games and "listen" to music. I would expect many, many actions to be submitted to Facebook for approval, especially related to game-specific acts. It's too early to tell how closely the social network will watch its pending list of actions, though there's a clear approval process.
The Twitter Streaming API has been successfully used by Yahoo!, Google, and Microsoft, who have been given access to the full feed of all public tweets. Twitter has now enabled this "firehouse" of data for a number of other companies.