It is clear to me: as some have said, a build of 8.1 for HW2 cars only, is being hurried, hopefully tomorrow. AP1 casr will get another build of 8.1. Remember, we now have at least nineteen released builds of 8.0 out there!
So there will be two versions of 8.1, one for HW2 cars without all the features that Elon has promised and another for everyone else? That makes little sense.