Something I think people are completely missing is FB's opportunity to gather eye tracking data using the headsets. Eye tracking is one of the next obvious step

Something I think people are completely missing is FB's opportunity to gather eye tracking data using the headsets. Eye tracking is one of the next obvious steps for Oculus to implement in their headsets and it's an extremely valuable prospective source of data for Facebook. Facebook is all about gathering ever more intimate user data. They can already put together a reasonably complete record of all the sites you are visiting anywhere on the net using their +1 button loads. Now they can go beyond clicks to see things you even thought about, actually even things that you weren't even thinking about yet. For example, Facebook could easily detect if you were gay by looking at where your eyes went during a session. Maybe you haven't even admitted it to yourself yet, but Facebook already has that information ready for advertisers or whoever has an interest in 10 years.