EDIT: This also has been fixed. It turned out to be a missing letter in the plist file. One flippin' character was all it took to make things not work!
I was testing, just to get a Facebook login button to work.
The Facebook ID I used is for my WIP which is a registered game with Facebook in sandbox state (posts to my page are only visible to me, but they do happen, but aren't being tested here).
In iOS 6.1 on my iPad (which has the Facebook app installed) after doing the setup and calling agk::FacebookLogin(), I get a page that says "You have already authorized <app name>" with a pair of cancel and ok buttons. No matter which button I press, I get a white screen with blue bar at top with a cancel button. Clicking on the cancel button takes me to my Facebook app.
On my iOS 6.1 iPod Touch without the Facebook app, it brings up a Facebook login and then I get the "You have already...." message. Clicking on either button drops me in Safari with the error message "Safari cannot open the page because the address is invalid.".
I run into the same events when the same code, in Tier 1, is run through a Player.
Cheers,
Ancient Lady
AGK Community Tester and AppGameKit Master