The primary problem mentioned about the new layout was that the quickbar is too tall on some smaller screens. One possible solution to that is that I added two more sidebar options to user preferences: now there is not only "none", "left", and "right", but also "fixed left" and "fixed right"; in these latter two, the sidebar is scrollable with the page.
We may also want to experiment with the fonts a bit, and decide which of the now five options is the best default.
Also, it is my intention that "none" should be a useful option, in that there shouldn't be enything on the quickbar that isn't also accessible elsewhere (for example, the special pages list which isn't done yet).0