OK, rebhana, it isn't anything broken with dbus-switchboard. You just have to add lines to the two mimetype files. First, /usr/share/applications/defaults.list application/postscript=hildon-dbus-switchboard.desktop Next, /usr/share/applications/uri-action-defaults.list application-postscript=hildon-dbus-switchboard.desktop Note that it is application-postscript not application/postscript in the uri-action-defaults.list file. And no, don't ask me why. I will add this type to my postinst script, might as well make it available for everyone.
application/postscript=Evince Debian application/x-bzpdf=Evince Debian application/x-gzpdf=Evince Debian application/x-bzpostscript=Evince Debian application/x-gzpostscript=Evince Debian application/x-dvi=Evince Debian application/x-bzdvi=Evince Debian application/x-gzdvi=Evince Debian image/x-eps=Evince Debian image/x-bzeps=Evince Debian image/x-gzeps=Evince Debian