These ebuilds come from http://overlays.gentoo.org/proj/gentopia.
If you have some problems, go to the official site first.
gnome-device-manager : Gnome device manager is a replacement for the hal device manager. ( http://there.isnt.one )
policykit-gnome : PolicyKit policies and configurations for the GNOME desktop ( http://hal.freedesktop.org/docs/PolicyKit )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org