I'll bet you went to rhodes. The minute i set eyes on your hundreds of worthless, baseless moronic messages i knew you probably go around the country retraining professors. You reek of manic depression and substance abuse. Carryon not much in your world.
He's a lot smarter than you (and me), but that's a debate for another day. (it's not a debate, he is)
It's not just an app. It's mobile middleware. It puts the FB experience at the core of the phone, making the Android OS irrelevant and giving FB the ad dollars that would have gone to GOOG. You know what would have been idiotic? If they'd built an honest-to-god phone. This allows them to leverage every popular Android phone out there, which is a much larger addressable market than people willing to buy a FB branded phone.