I remember the days of playing with /etc/$WE/wpa_supplicant.conf to try and force a semi-secure network on a debian based system, but now on to xubuntu, I haven't needed to do any *.conf-ing in a while (in terms of networking)
As such, I'm interested to know; How do the nm gui's store network information? Can this be backed up or exported as a wpa_supplicant.conf file?