I have never liked these ON/OFF buttons, they're confusing:
Is it saying my Wired connection is Currently 'OFF'? If so, why/how is it connected anyway? Or is it saying that if I click that button, it will go 'OFF', ergo it is currently 'ON'? Also the Aeroplane Mode one seems to have a mind of it's own, and automatically toggles when I click the wireless ON/OFF button (?!).
I'm on Ubuntu 12.10
This is my interpretation of this GUI elements