I've one Circle Dock issue to let you know and must be improve, it is rotation mouse wheel scrolls up n down, every times I must click on the Circle Dock background once time to use mouse wheel to scroll up n down to rotate the icons, when click to show up or start up the Circle Dock. My suggest is when mouse over on Circle Dock and scrolls to rotate the icons, no need to click every times.
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Now I using (minor Alpha8.1) and not have this problem yet, I don't know why...? But I still remember Alpha 8.0 has this problem...
Never mind, I keep on to attention this issue