Whooo…. See the post describing the process here.
The download should be available for MSDN Universal / Express / Dev subscribers now, and for external beta groups by Wednesday (I’m told you can get your CD to you by Friday for those who are official beta groups). Some groups are reporting issues with build numbers, versioning, processors, etc. I suspect these are most likely due to MSDN’s upload / download system, which often has these issues due to minor human error. They’ll be fixed in the next few hours (if they aren’t already).
Okay, NOW I’m going to bed so I can actually get some work done tomorrow.