Just read the Airpower article on MacRumors. What I want to know is for this (or any other wireless charging system), does it draw more power than if you just use the cable? For the 'future cases', which one is correct? If the Airpower mat draws power on it's own, how much of a difference does it make leaving it always plugged in? It seems silly to in order to conserve power, to put phone on mat and plug in airpower mat. Today I take cable, and plug in the cable on both ends, power is drawn. Overall Power costs lowest because your only charging when you hook up your phone. Future (Case A) Airpower mat plugged in (always drawing power) Put iPhone on mat... power that was already drawn for Airpower gets channeled to iPhone. Power cost highest because Airpower is always drawing power. Future (Case B) Airpower mat plugged in (not drawing power) Put iPhone on mat... power starts getting drawn and charges your phone. Power cost lowest and identical to using a cable like today.