as a threat to FB it worth much more. FB is just too slow to recognize it. Wrt. feeling of immediacy/in-the-moment/real-time we have progression from "archaic grand-ma long form" style of FB status update, wall posting, etc.. -> TWTR -> Snapchat. FB is $100/user, TWTR is $100/user and the $3bn is about the same valuation for Snapchat.