The fact that so many popular apps have to pull in a full-blown SDK from Facebook to get support for even a subset of its functionality is insane to me, too. Th

The fact that so many popular apps have to pull in a full-blown SDK from Facebook to get support for even a subset of its functionality is insane to me, too. That 'log in with Facebook' button on your app comes with an entire suite of stuff that Facebook can use to slurp up any data it wants.