Wireless Electricity

This is a photo of a power socket on a small local train. On these smaller services there is a sticker above them saying that they are not for public use.

This got me thinking about the future of wireless electricity. At the moment it is commonplace on larger services for there to be free wireless interenet but how long will it be before there is wireless electricity on trains?

Even though it's only January, this year has already seen rise to the worlds first wireless electricity system capable of powering a LCD television.