Re: bookmarks for settings
yes, there's a lot of user cases that saving is not usefull.
first of all you need write access to xorg.conf file.
with my laptop i use my external vga output with different projectors with different settings (resolutions, location, etc). and i also use RGB output (svideo) with a little tv.
so if i write my conf to xorg.conf and i have any external monitor connected i get different behaviour.
i think it should be usefull to have a trayized app to quickly change between different settings. even without a little app like that it should be very usefull to have bookmarks for favorite settings.