Comment 8 for bug 876788

ok, after having a serious look, it seems to me that GNOME dropped it in nautilus 3 because they don't support anymore the "nautilus showing desktop" mode and so don't need a .desktop file running nautilus --no-desktop.
Anyway, it seems that just running nautilus %U do the right thing this option on or off and exit nautilus when it's needed, so I think we should just use the nautilus desktop file again for this mimetype. (and transition people to it)