I updated my Windows Live Writer to the 2009 release candidate today. I’ve been a fan of WLW for a long time and this update seems like a nice incremental step forward. Scoble seems to like it too.
You can download the new version from http://windowslivewriter.spaces.live.com/. It includes updates to the entire library of Windows Live applications (including a nice update of Messenger)
The only thing on my wish list is built in support for cross-posting to multiple blogs.