I've been writing a Win32 client. It'll be finished if it continues being interesting to write; I'm currently having some difficulties thinking of the proper way to handle the subject and metadata. (I'd like an interface like LoserJabber's, but more appropriate to Windows metaphors.)
Here are some fun features I've planned to add. Feel free to request others in a comment.
- Journal export (backup) to TXT or XML.
- Preview of posts (using embedded IE, probably).
- LJUpdate-style friends list monitoring.
- Smaller, better, faster, more, etc.
I'll release a beta as soon as it's usable.