To go off on a bit of a tangent from the immediate discussion...
I was in an AT&T store today, primarily to check out the feel of a Note II as having the additional screen real estate has peaked my interest. After some time with the Note II--contrary to my earlier beliefs it does not feel overwhelmingly huge--I noticed at the Nokia display that they had a Lumia 920 on a wireless charging plate. I thought the technology was the same so I plopped down my Nexus 4 on the charger and voila, battery indicator showed it was charging.
I have to admit that while previously thinking it was cool tech but more of a gimmick, I've had a change of heart and found myself really wanting the orb (or whatever it's going to be called) for my Nexus 4. So nice to just drop it down and be able to quickly pick it up and go. Even contemplated getting the Nokia version but the Nexus was a bit wobbly/unsteady on it and would prefer the angled position of the orb vs. flat Nokia charging plate as I also use my mobile phone as an alarm clock.