indicator-session 12.10.1-0ubuntu2 (amd64 binary) in ubuntu quantal

 This indicator is designed to be placed on the right side of a panel and
 give the user easy control for changing their instant message status.
 Switching to another user. Starting a guest session. Or controlling the
 status of their own session.
 .
 It requires some way to be hosted into a panel. For the GNOME Panel the
 appropriate package is indicator-applet-session.