It looks like Facebook asks for Location: Always on iOS. (I've got mine set to Never.) I wonder if they feed this back to the servers. I presume you didn't po

It looks like Facebook asks for Location: Always on iOS. (I've got mine set to Never.) I wonder if they feed this back to the servers. I presume you didn't post anything about the "event" to facebook (I've seen "Person is going to attend Blah" posts before) or "check in".