The Habari Project has redesigned their site since the release of Habari 0.5. I like it much better than the old design.
Micheal Heilemann, a long time user, designer and developer of WordPress themes (K2, Kubrick) and plugins, has converted Binary Bonsai to Habari with a minimal design and nice typography.
Chris J Davis, another developer/designer who has worked with WordPress in the past (K2, Kubrick, WicketPixie), has also redesigned his Habari driven site. I love the infinite scrolling/non-paged home page; it dynamically loads older content as you scroll to the bottom!
The Habari Project team released Habari version 0.5 yesterday. The 0.5 release implements the previously mention Monolith admin interface.
In testing on my development server, Habari has make great strides since the previous versions. The latest version was easy to install and get accustomed with.
Update: added screenshot.

Monolith admin interface
I Named Her Monolith – A design proposal for the administrative interface for the Habari blogging platform. The video quality is somewhat poor, but shows some of the functionality of the interface. For a true look at the design, check out the Monolith Flickr set.