Very interesting article I just found at BBC News...
Wireless energy promise powers up
By Jonathan Fildes
Science and technology reporter, BBC News
60W light bulb being lit through a wall from 2m away (Science)
A light bulb glows whilst receiving power from 2m away
A clean-cut vision of a future freed from the rat's nest of cables needed to power today's electronic gadgets has come one step closer to reality.
US researchers have successfully tested an experimental system to deliver power to devices without the need for wires.