For the adventurous, Microsoft has announced the Beta version of
Windows Live Writer, now available for download:
Windows Live Writer is a desktop application that makes it easier to
compose compelling blog posts using Windows Live Spaces or your
current blog service.
Writer is a great client for Windows Live Spaces but also works with
other weblogs including Blogger, LiveJournal, TypePad, WordPress (and
Writer supports RSD (Really Simple Discoverability), the Metaweblog
API, and the Movable Type API.