I'm finding several things to like about Habari.
- It's spare. Barebones, really. There is no wysiwyg editor, for example. All posting is done in html
- It can use Sqlite.
- Even this early in development, there are several useful plugins and themes.
- It's small.
- It's fast.
- With a little work, the code is understandable. The biggest problem I'm having is trying to learn regex and the way PHP uses arrays.
- It promises to be able to run either a single site or multiple sites from one installation of the software. This can use one or multiple databases. This can save several megabytes of disk space if you run several sites.