All this adds up to some worrisome news for the behoodied one: if Facebook can't enthuse mobile users, the company is in serious trouble. Mobile users are going to be key to ensuring growth for the social network, and it needs to gather large numbers of smartphone users to build revenue and keep the shareholders happy

Not great news for Facebook for sure. Too much, too soon, or is the brand just not as extensible as many thought? Me? I'd Poke out my eyes sooner than have Facebook on my lock screen.