Jason Bentley has started a new open source project to be an alternative to Team System.  The idea is to use already available open source solutions like NUnit, NAnt, etc.  I think this could be a very successfully open source project.  Team System is great, but to expensive for small to medium development environments.  The only solution for this market currently is to cobble all of the different N*'s together typically with source safe. 

I've sent my request into the workspace.  I hope this works out.