A nice little application that provides an effective, light-weight journal keeping capability. I like the way you can edit entries in Wiki-style markup, and can export to HTML, PDF, etc. The search feature works well. The annotation/tagging feature is a bit strange and doesn't seem all that useful, but it doesn't get in the way of the basic functionality which is quite good.
On the surface this app shows a lot of promise as an effective light-weight journal tool. The minimalist GUI design is very well done. Unfortunately installation is not straight-forward (need to hand-edit some XML configuration, but no documentation to tell you that!), and the search function appears to be broken.