abiword : Fully featured yet light and fast cross platform word processor ( http://www.abisource.com/ )
libreoffice : LibreOffice, a full office productivity suite ( http://www.libreoffice.org )
unoconv : Convert between document formats supported by Libreoffice ( http://dag.wieers.com/home-made/unoconv/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoo-playground
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoo-playground-portage
If you have a problem : ycarus(-at-)zugaina.org