The "TDD deciphered" series was starting to take over Phase.org, and the site's design - basically as a blog - wasn't really ideal for navigating an online book. I've now moved the project over to its own domain at
tdd-deciphered.com. This new site is based on the Symfony framework (which I'm now trying to learn) and should be somewhat faster and more streamlined that Phase.org, which contains a lot of legacy code.
Now that that site's launched, I'm hoping to get back to creating content for the series, and to get a demonstration of the machine online.