I was working on a quick-and-dirty tool to manage my MSDN keys, and I headed over to the MSDN Subscriber homepage, when I saw this notice:
Windows Vista and Office 2007 will be available through TechNet Subscriber downloads within 7 days of release to manufacture (RTM). TechNet Subscriptions is committed to making new content available to our subscribers as soon as is practical.
I have a feeling they meant MSDN as well, because it was on the MSDN site. But there you have it... if Vista RTMs this week (as expected), MSDN subscribers should get their copy by next week. Sweet!