From the PHP in Action blog today, there's a new post that (briefly) shows how to run your tests directly from a popular unix text editor - vim.
I created my own test runner to run tests inside Vim, I can't remember how long ago. Must be a year or two. I never shared it with the world. It was too primitive for anyone else to use. Then, recently, I decided to try re-implementing it in a more serious way.
The "more serious way" meant using Vim script to its full potential, including the ability to work with objects and already has its own testing framework. He includes a screenshot but no download just yet. It looks promising and makes running tests as simple as hitting F11 and watching it go.