Wow I love Open Source; I ask a question, at 3 AM EST, and at 4 AM EST I have an answer. :D
Perfect demonstration, I would strongly suggest that you put this awesome example somewhere on the Google Code page, so people can see why tblog is such a great TurboGears blog application.
One little issue though, I'm not sure if it's only your demo, or the application itself, but W3C's XHTML Validator isn't happy with your markup:
http://validator.w3.org/check?uri=http%3A%2F%2Fblog.bluendo.com%2F&group=1
Thanks so much for the quick and relevant reply.