>
> I was going to say the same.  Two additional remarks: as you mention
> implicitely, using bottom-up with tdd might be a bit easier / faster
> because you save yourself all those lower level stubs that you need 
> with
> top-down and tdd.

i think its much better to use mocks and not stubs for the top-down
approach. also you really benefit from the isolation of the tests when
you use mocks.