- Extend the D-Bus interface to take an XID so the dialog can be
   managed accordingly by the Window Manager

 - Would it make sense to have a convience library libpolkit-gnome
   that calls into the D-Bus service?

 - HIGgy stuff

 - Clean up the code; parts of it is somewhat a mess right now; do
   we really need to link to libgnome and libgnome-ui?

 - Support for systems that don't use the root account; e.g.  instead
   of authenticating as root, authenticate any user in e.g. the
   'wheel' group. Probably means we need a combobox for selecting the
   user to auth as. See also the TODO in PolicyKit

 - Move the GNOME SVN (ticket ID [gnome.org #2863])

 - Make the daemon exit after 30 seconds of no service requests

 - Make the example use the new D-Bus system bus activation for the
   helper as well as the (to be) setuid binary we've got now