Your phone is not only registered to the apple dev portal but also as one of 100 to the developers certificate. With an enterprise certificate distribution is

Your phone is not only registered to the apple dev portal but also as one of 100 to the developers certificate. With an enterprise certificate distribution is technically possible and many do distibute their beta software this way. But I am sure Apple will revoke enterprise certificates if they are used to distribute apps en masse outside the App Store.