If your iPhone is registered as of this beta release, does it's UDID need to be re-registered with each subsequent beta release, or in the past with 3.0 and 2.0, if you were registered at the outset of the beta period, the UDID was registered for the duration of the beta cycle?? (SUPER RUN ON SENTENCE). I know how to roll back, but I'm just curious....thanks much, g.k.