Phil,
First off, just so you know, Authenticated Referrals are being removed from Facebook. They led to 'poor quality apps' and unhappy users.
developers.facebook.com/blog/post/2012/1...tion-developer-love/
They announced this on the day I responded above saying we're still evaluating our plans. That certainly helps us evaluate things better
Thought you should know that AR's won't work in a few months.
So, not sure what we're going to do about that now since in both cases, it seems, the user will have to use the Login With Facebook button. Any feedback, suggestions, or ideas, as always, are welcome! Not sure if we'd want to separate out how the login functionality works depending on mode without the auto-registration factor (Authenticated Referrals) being there, just so you know.
Thanks,
Alex