Well, CTP5 is just around the corner. This is essentially our beta release and is so close to done that I can taste it. Cameron has blogged about the new features on his Blog.
I am really excited about this release, it means we are almost done and are in good shape to release before the end of the year.
The CTP should post on Monday and you can download it from here
On another note, I am posting this blog using the new beta of Windows Live Writer, so far this seems like a great little tool for blogging, check out the writer teams blog for more information