We're currently using MbUnit but run unit tests by filtering out our integration and database tests. With the mbunit task, it's impossible to specify filter or excluded categories to run specific test suites.

Good point. How would you like to specify that? Maybe something similar to a fileset? What filters would you require? - Category - Importance - Author - Class - Namespace

Like a fileset (much like how you have assemblies now). It should support what most of the command line runner can do (exclude categories, filter categories, etc.)

Here's an idea:

Where: filters/include => /filter-category option in MbUnit.Cons.exe filters/exclude => /exclude-category option in MbUnit.Cons.exe

Added filter for category, author, type and namespace.

...

Looks great. When will the documentation be updated?

I created a new release with updated docs.