Business 2.0 reports about what could possibly be one of the biggest breakthroughs of the year: an over-the-air charger for low-power devices (cell phones, MP3 players, automotive parts, temperature sensors, hearing aids, and medical implants)The system works through a power transmitter - recevier module (see illustration on the right). The receiver that "catches" the power from all the bouncing radio signals and converts it to DC power is actually the magic piece of the system. And it just costs 5$ to make.
Powercast, the company behind the product, has already partnered with many device manufacturers to produce the "receiver" for these devices to make them compatible with the company's over the air charging products.





