Apologies for the self-indulgent links -- I wrote the articles, so they were easy for me to locate. ;-)
[1] http://www.hizook.com/blog/2012/04/17/wireless-power-transfe...
[2] http://www.hizook.com/blog/2010/07/20/gliding-uav-perches-po...
The side-view picture in your write up looks almost like a helicopter. Look at a different angle though: http://www.airplanesandrockets.com/airplanes/images/models-i...
From a practical perspective, wireless power transfer (of pretty much every form) can have major drawbacks... but they're "rearranged" in the system to make 'em palatable. For example, the system as a whole may be incredibly lossy -- but that's predominantly at the ground station where you have ample access to power. Often, you're willing to accept 10% conversion efficiency when 100% of the converted power is useful to the target (think of RFID tags). In other cases, the benefits of near-field (short-range) inductive charging are (1) lack of wires and (2) more robust physical design (check out Sphero). TL;DR: there are circumstances where all these things make sense, but it's very application and system specific.
As for your take on acronyms... UAV => Unmanned Aerial Vehicle. Brown's contraption flew (albeit attached to guide wires for stability) without an occupant. What would you call it?
You can make a ping-pong ball hover in an upward column of air, but I wouldn't call the ping-pong ball a UAV. It's just semantics, but I think the term implies a certain level of autonomy. Another example, there are many radio controlled aircraft in the hobby world that I would not call UAVs. One could take the same r/c vehicle, integrate an autopilot, and then UAV might be a more appropriate term for it.
In my view, anything with Return To Home level autopilot and above could reasonably be considered a UAV. This generally requires a 6-9DOF IMU, an altimeter, and a GPS receiver.
You might be able to juice it up in midair, but the field would have to be somehow focused on the quad, otherwise you'll never get the required power density.