Everyone who attends MSNDC which lasts through Dec. 9th to Feb. 19th will receive their own copy of Win 7 Beta 1.
A quote from Keith Combs of Technet that clarifies whats gonna happen.
My understanding is that the DVD will not be ready for the first few show dates but will be mailed to each attendee. We are targeting to have the DVD’s in the materials from 1/13/2009 on. So I would imagine the folks attending the Houston, Orlando and Atlanta shows this month will receive their DVD’s around mid January as well. That’s an assumption on my part. Could be earlier or later, but they will get them. Make sure your Microsoft profile has the correct address.
Chances are that after shipping you'll receive a Windows 7 Beta 1 DVD in mid-late January.
Beta 1 will probably be showcased at MSNDC so it wont be long before we get to see it. Yay!
It's possible that some people will be ably to get it on January 13th or even before .