Yay My kitchen bench is a mare's nest of chargers and cables.

As it operates in the ISM band, they can use the same technology for data transmission. Use the carrier freq for power generation, and piggy back data.
The power transmitter would ideally be placed high, like in a light globe, to minimize obstructions.
I like the simplicity of listening for the highest beacon power and focusing the beam in that direction (in principle). I'm just curious how the device forms beams quick enough and accurately enough to adjust to the device's location, as multiple beams would have to work in unison. ie - the array would have a pre-programmed matrix of which antenna must be on at what phase to aim the aggregate beam, but how accurate can this possibly be for a device this small. One would assume the transmit array would have to be a bit bigger to achieve better accuracy.

Brilliant! Wire a spare receiver to keep up charging supply for a "onesie" (long john) shaped electric blanket for interior wear and winter home heating is solved!

wow.. game changer /

And cooks popcorn too, or you're brain, whichever is closest. and with a power surge can set off a pacemaker.

I hope they pick different freq. - like right now my wireless headphones interfere with my router. I have to use one or the other....

Good start. Now if they can only get rid of all the wires on components for stereo/video/computer peripherals, without frying everyone in the room, I'd be at the front of the line to buy the system. Whole house wireless! Brilliant. Don't think electricians would like it very much though.

Wattage is not a very useful metric without voltage. I guess we can assume 5V though because USB was used for the measurement. So this supplies 200mA then? That's pretty decent. To put it in perspective, an iPhone or Galaxy S charger is 1A. 200mA is not going to be able to sustain the charge on your device while it's in use, but it's enough to give you a decent bump while the thing is idle.
With that relatively low power output, I don't see this actually replacing standalone chargers. You can juice up an empty iPhone in an hour. This thing would probably take 4 or 5. Still awesome.

That first high energy beam would still hit the human though before it changes it's path.
Also once this becomes more powerful wouldn't that increases the hit redirect human ratio by a large factor!?!
Can someone answer these questions?

Eventually this could replace all the wall sockets everywhere, and potentially even gas stations. What's the limit of wireless power transmission?