No it is not made by LEGO. It is made by i-brix debuting on kickstarter, but it is what you always dreamed about. No batteries, no wires, great lights size of 1×1 brick! It powers the lights virelessly which allows great freedom of building. All you have to do is keep the lights not higher than 20 cm (8inches) over the power plate that comes in 2 sizes 16×16 and 33×32 studs.
Here is review of early prototype by Jangbrix:
Or go to i-brix kickstarter page to back it up. I already did.