This movie demonstrates an implementation of wireless energy transfer, in combination with magnetic levitation. The result is a light bulb(20 Watt) floating in mid-air, while lit.

The great guys at Hackedgadget.com have posted this movie on their website with a little explanation. But you can always drop me a message.
rmassink @ youtube
http://weirdscience.ca/2007/06/21/levitating-light-bulb/