Hey,
I have just build a redhat-menus package that gets rid of the Submenus in Preferences. We kinda inherited them from the control-center shell, which never really took off, and they didn't really work well, since the categorization left people guessing which submenu to open.
This means the Preferences menu will be a bit long. We should perhaps take it as encouragement to weed out some unnecessary things from there...
Matthias
desktop@lists.fedoraproject.org