Comment 59 for bug 284596

To overcome the the problem with the administrative privileges, 'pkill nm-applet' can be saved as a script (lets say in /usr/local/bin), and then its name along with all usernames can be added to /etc/sudoers.

However there might be a better solution: hack the consolekit to do all the killing/restarting for the user. So upon switching a user the nm-applet should be killed and then restarted with the new user privileges. I'm not sure if it is doable with the consolekit though.