Coming from ubuntu, I installed Arch with Gnome 3 (didn't like unity). I have a small annoyance with Network manager from [testing]. When I select a wireless network, it asks for my sudo password and creates a system connection under /etc/NetworkManager/system-connections. Even when unchecking "Available for all users" in nm-connection-editor afterwards, the settings are kept in /etc instead of gconf/dconf and gnome-keyring as was the case in ubuntu (don't know if that was also the case in arch with gnome 2).
Of course, I can instruct PolicyKit to not ask for a password when modifying the connections, but I'd prefer to keep my keys in gnome-keyring instead of unencrypted files. As the single user of the system, I do not need system connections.
Seems like this is an upstream change in nm 0.9, and no workaround that I know existed for it.