Oooh, this is going to be exciting. I've been out of the blogosphere for a while, but there are a number of interesting things here that I'll want to talk about.

In any case, if you're and MSDN Subscriber, head over to http://msdn.microsoft.com/longhorn/ and download the March 2005 Avalon and Indigo Community Technology Preview. Even if you aren't, you can still get access to the docs, in case you want to take a look, at http://winfx.msdn.microsoft.com/library/.