That would be approx. $94 per active user. I know there have been social networks which went over the counter at that price before, but looking at them now I would not touch this stock with a ten foot pole.
I certainly can't think of any way to extract that much money from my account. Ads?
I know that this reflects not the current status but future expectation, but I cannot imagine any way how Facebook can fulfill those expectations. They have nothing, which when taken away would make users hurt. Other social networks stand in line.