These ebuilds come from http://dev.gentoo.org/~dberkholz/overlay/.
If you have some problems, go to the official site first.
iw : nl80211 based CLI configuration utility for wireless devices ( http://git.sipsolutions.net/?p=iw.git )
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