[superuser2]

I can't imagine an enterprise which would MITM employee web browsing but not block Facebook. Come to think of it, I can't imagine an enterprise that would MITM employee web traffic but allow personal smartphones on the network.

[eric_h]

Ha. Yes, fair enough. But, presuming they didn't, would it not be in facebook's best interest to allow their app to still work, perhaps with a visible warning?