Today, the wireless transmission of energy becomes more and more commonplace. The German Fraunhofer Institute, one of the most advanced think-tanks in Germany, has also (among US-companies as WiTricity or INTEL) developed a system for the transmission of electrical energy for portable device like mobile phones, PDAs, watches and the like. The electro-magnetic field generated by the transmitter is captured by an antenna within the device; this could be an ultra-slim foil antenna. With no word the Fraunhofer Institute for Integrated Circuits (IIS) acknowledges Nikola Tesla for inventing the basics for this technology.
http://www.iis.fraunhofer.de/Images/Energy_Transmission_tcm97-135310.pdf
http://www.iis.fraunhofer.de/Images/Energy_Transmission_tcm97-135310.pdf