Cool, but...
Until Facebook has outside security reviews, there's no way their complicated and highly connected app is going on my phone with permission to do anything it (or a hacker) wants.
Facebook is adding a new application that alerts smartphone users when their chums are nearby, but thankfully the feature is optional. Nearby friends Want to get closer to your friends? "If you turn on Nearby Friends, you'll occasionally be notified when friends are nearby, so you can get in touch with them and meet up," …
Stacks of menus? Good heavens, no. You'll have to go your local planning office, where you'll find the form in a dark cellar with no stairs, in the bottom of locked filing cabinet stuck in a disused lavatory with a sign on the door saying 'Beware of the Leopard.'
I like the idea of Facebook becoming the marketing department of Sirius Cybernetics Corporation, if only for the comfort of knowing what fate awaits them.