Yikes! Channel9 Dev's have just released one hell of a new open source Blog/CMS project Called Oxite the new system is written in C# and uses the new MVC model available in ASP.NET 3.5. The source code can be downloaded from codeplex and from what I’ve seen so far it’s awesome!
I’ll update later tonight with a review.
For more info visit: http://visitmix.com/lab/oxite/ to download visit; http://www.codeplex.com/oxite