SharePoint 2010 sneak peek site is live and can be accessed here. Currently there are three videos, first one which goes over a general overview of new and enhanced features of SharePoint 2010 by Tom Rizzo, an IT pro by Richard Riley and a Development focused by good colleague of mine Paul Andrew! There is also a FAQ section with some good information on how to and when to get the SharePoint 2010 beta bits.

sp2010

Enjoy.