I have Find My iPhone turned on in Settings/iCloud. For some reason, the phone picked an obscure Apple ID that I never use. It is one of my alternate Gmail addresses. To update to the latest Beta (clean install), this has to be turned off. I attempted to do so, then was prompted to enter my password for this Email address that I never use as an Apple ID. The password is not accepted, even though I know all my passwords. I even went to the Apple ID web site and tried to log in and even change my password. It didn't accept my correct date of birth and I have not yet received a reset password Email in over 6 hours. This Apple ID is not in use anywhere else on the phone or on my Macs (iTunes, etc) so I do not know how it became associated with Find My iPhone. Also, it was not associated with FMI on Beta 2. I had no problem turning it off then. Anyone else have this problem? I even called support and they at first didn't want to help my when I mentioned iOS7. They were unable to help me with the Apple ID since I initiated a password reset. They said to wait 24 hours for the Email. Arrrgh!