Okay this is just damn cool. A cell phone charger that sucks radio out of the AIR and gets D/C current off it.
Its tiny but hyperefficient receiving circuits can adjust to variations in load and field strength while maintaining a constant DC voltage.
The $100 radio-chargeable laptop could be a few years closer.
There must be uses for this no one has thought of yet - Just the thought of pacemakers and other medical implants that don't require new surgery every few years is amazingly cool. How long now before we get other kinds of implants... I wouldn't mind a panel of blinky lights in my own skin, somewhere. Everything can be improved by a panel of blinky lights!