As promised, I am releasing my Parallel xUnit solution built on top of the Task Parallel Library.  Last year I released partial code for a solution built on top of my own thread pool.  I updated the solution for xUnit 1.1 and used the previous CTP of the Parallel Extensions for .NET; the code should also work with the recently released .NET 4/VS 2010 beta. 

As shown in my Parallel Extensions talk at the FVNUG Day of .NET, the unit of parallelism here is the class.  Enjoy, and please send me any comments.

Download xunit 1.1 with parallel test runner