At the last F8 event in 2011, finding new ways of sharing content was the chief item on the agenda, as demonstrated by revamped user profiles and the debuts of Timelineand Open Graph.
This time, expect anything and everything mobile.
In related news, Facebook is doing a significant job of making its presence known at SxSW.
On Friday, the Menlo Park, Calif. introduced a Public Content Solutions program, consisting of resources for third parties using Facebook's data and content APIs for media solutions. Examples of those content APIs range from Instagram to the Public Feed.