Facebook is inviting the press to an ambiguous “event” tomorrow morning. Let the speculation begin. TechCrunch has five guesses. Several posts, interpreting the invitation’s wording (what is this, Apple?), think it’s about Facebook Events, coupled with Places. There are a few votes for a Skype integration. I could stick with my earlier guess – a new iPad app – but a revamped communications hub with Skype sounds likely, even though earlier leaks didn’t seem especially innovative. Presence and communications management is a logical role for Facebook. Could it make a better contact manager?