You all know the convrovercy around the acquisition of Sun by Oracle and the branch of OpenOffice.org called LibreOffice. I'm not going to comment about this, because I'm neutral. What I need to tell you however, is that you already have the latest releases of both office (productivity) suites availiable on the site. SlackPack will continue building packages for both (Bulgarian translation team is also supporting both) for the time being.
Use and enjoy whatever you want!