The first new version of Radio in a while will be released the third week of September. This version has some great things in it - all based on requests from users. Steve Kirks lists what that made it into the 8.1 release and what didn't make it in this post.
Radio was so far ahead of its time when it was originally released and its still the best complete personal blogging package for those of us that like the integrated RSS aggregator among many other things. Hats off to Steve Kirks and Patrick Richie for making this happen.