drake vs the standard Rails Rakefile

Railsters:

I tried to stop them, but my colleagues have added way too many unit tests to our projects.

Because we are underusing our multi-core CPUs, I would like to speed the test run up by soaking the unit tests in one thread and the functional tests in another.

drake is a rake clone which offers the seq[:task1, :task2] command, to run the two tasks in two cores.

Has anyone tried this with the standard Rails Rakefile? and would like to share some scripts? that maybe show how to keep the database happy?

I will post back here what I discover while trying to do this!