The PlayStation Store has added a Facebook app for your shiny new PlayStation Vita this morning. This is a small (12mb), free download that you should get so you can see my all-caps bragging over my Hot Shots Golf: World Invitational high scores. If you want in on that nonsense, add me as a friend: Dale North.
Facebook for Vita is pretty nice, though you'll be dealing with some really small text. Friends management, updates, contacts and photos all work much better than any iOS version. It lacks a bit in speed, but I'll take a slightly slower app that looks nice and works well. Nice job!