We're excited to announce that our code base is now open on code.google.com: Visit google-belay.
This is the live repo that the team is coding in. It works, but we've made it "one-click" installable or runnable. In particular, you'll need the AppEngine Python SDK, and you'll need to be comfortable setting up local development instances with it. See our admittedly terse README.txt file.
If you're pulling from head, you'll see everything we're doing. If you want to pull it and play around with it yourself, we suggest pulling tag v0.2. You can grab it from the downloads section, or from the repo directly: