I have been playing with this utility for about a week. I think I might keep it.
I noticed it on a Mac years ago an thought it was nice. I have tried others like it but they were prone to suckage, crashing, locking up, etc.
I am guessiong most of you will not like it. I didn't see the point at first, but the longer I tweeked the settings and forced myself to use it the better I liked it. Now it is like an extension of the mouse.
I use at the right side with auto-hide offset past the scroll bar.
http://www.punksoftware.com/rocketdock