I've released version 0.5b1 of my Python blog/wiki/CMS software Leonardo. It's available at: http://jtauber.com/2005/leonardo/leonardo-0.5b1.tgz
There will be a handful more minor enhancements before a release candidate but I'm keen to get 0.5 wrapped up so I can start on trackbacks, comments and categories which will be the main themes of 0.6