Comment 6 for bug 319805

I noticed today that gnome-panel's window list applet allows scrolling anywhere on the applet to cycle through all windows in the way the previous 3 comments have described (though it doesn't wrap around at the end of the list, which gets pretty annoying)

I mention this because
a) It suggests the people developing Gnome feel that Metacity doesn't solve the problem sufficiently well and so this is worth having.
b) Users ditching their bottom panel in return for Do might find that they miss this functionality.