bug#17152:
I also filed against PackageKit here: https://bugs.freedesktop.org/show_bug.cgi?id=76810 and gnome-software here: https://bugzilla.gnome.org/show_bug.cgi?id=727367
bug#17152: GNU Guix backend for PackageKit / Gnome-Software
This will make GNU Guix much more accessible to a wider audience.