Matthew Turland has said goodbye to Wordpress and hello to Habari - a "next-generation free software blogging platform". He also includes one of the more helpful tips for those thinking on doing the same:

So after eventually getting fed up with WordPress, especially after the WYSIWYG editor disappeared in the 2.3.3 update, I finally decided to bite the bullet and migrate my blog over to Habari. Once I'd been through the process, I thought I'd write a short blog entry about the experience.

The two tips he mentions are about exporting the old content (made simple from the WordPress admin interface) and making Habari support his WordPress URL scheme (so as not to loose links to any content out there). He found this to help on that front.