I just checked https://wiki.ubuntu.com/DapperReleaseSchedule and we're into FeatureFreeze already, so its too late to modify these packages... As an alternative suggestion that would satisfy the requirements of those wanting to adjust their screensavers, could the ubuntu-desktop metapackage be slightly modified changing:
Depends: gnome-screensaver to this: Depends: gnome-screensaver | xscreensaver (thus allowing one or the other) -- no 'Settings' button in gnome-screensaver https://launchpad.net/malone/bugs/22007 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs