I tried to turn this on and never got the SMS confirmation they send, so I couldn't turn it on. That is kind of my worry with this kind of thing... if it doesn

I tried to turn this on and never got the SMS confirmation they send, so I couldn't turn it on. That is kind of my worry with this kind of thing... if it doesn't work when you need to login, you are screwed. Why not just have the Facebook app generate the code?