Its no secret that non-developers get ahold of the .ipsw files and install them on their devices. I am not here to debate the ethics, but rather give fair warning to those taking the risk. If you are running 7.1 Beta 1 DO NOT UPDATE OTA! It will check with Apple if you are a registered developer unlike in the past. If you are not, then you will not be able to use your phone and have to restore back to an earlier version. And no, you cannot go back to 7.1 Beta 1, the same problem arises. Apple has cut out the non-developers again. You have been warned!