We have a framework started in PHPUnit (Bergmann's) for our unit testing stuff here however its a very small subset of our code and I've found I enjoy working with SimpleTest more but thats not enough to justify why I should port over to SimpleTest. We're going to be getting more invested in Unit Testing here which means alot of time devoted to one of these packages.

I was curious if anyone out there might have some concrete examples of what might make SimpleTest superior to PHPUnit or if they really are just the same.