On my Mac, I received a notice that a new iPhone can receive FaceTime and iMessages, then I got two emails saying my iPhone has been removed as a trusted device for 2 step verification. I unlocked my phone and it asked from my Apple ID password. I logged into appleid.apple.com, and sure enough my iPhone is gone as a trusted device. (I logged in by having the verification code sent by text.) I don't think my account has been hacked. Any way to get in requires 2-step authentication. I didn't do anything. I'm wondering if maybe something's going on in the back end as they prepare for tomorrow's release.