I've released a new version of Test::MockObject. One of the nice things about documenting your code (or, I suppose, writing an article about it) is that if you find something you really don't want to explain, or cannot explain simply, it's usually a good sign that you need to rethink the bits in question.
Besides that, Ovid and his company have been using the module for testing their wacky deadline POS project. They've found some bugs too (a couple of them just after I did), and he has suggested some improvements that made their way into version 0.07. I'm pretty happy with the idea of next_call(), as it'll make some of my test code even shorter and easier to write.
It's also nice to have other people using my code. I like knowing that, for example, the printable display on a Slash-based site runs on code I wrote. As I told one of my students last night, "I like the idea that I've earned the right to use the free software I've been using."