Busy.org will launch a new and much better design soon. It is currently in private beta. I am posting this post using it. Though it looks great, it still has some issues that need to be fixed (that is true for all new software). I am posting some screenshots of the new interface below.
The above screenshot shows the new post editor. I must say, I am impressed with its smoothness. The editor page shows preview of the post below it:
Looks elegant, doesn't it? This new interface is currently in private beta testing phase. It will be released for everyone soon.