TBH, if Facebook was serious about producing their own phone, buying RIM and letting it operate as a subsidiary would be a wise move.

RIM/QNX make great hardware and (now) software. No one would disagree that they need help on the user experience side of things. They've made great strides in this area too, but that's where Facebook can help. RIM can stick to what it's good at.

That said, I really hope that doesn't happen.