Erica doesn't have a blog, so I'm just trying to be helpful...

http://msdn.microsoft.com/msdntv/episode.aspx?xml=episodes/en/20031107WINFXBA/manifest.xml

What is WinFX -The New Programming Interface Introduced in Windows "Longhorn"

Learn the object-oriented, managed API for the breadth of Windows "Longhorn" and how it relates to the work you are already doing on the .NET Framework.