Looks like all the Whidbey information on MSDN has been moved to a new MSDN site.
The site looks great, and easier to navigate than the original one. You can navigate to the topic you need easily by using http://msdn2.microsoft.com/library/<namespace>.aspx. Sweet. The came naming convention works for properties and methods as well. Kudos to the MSDN team for putting this together, great work, great site!