Anyone know how far off or how expensive how fast?
There have been several trial services running in the UK over several
years, but there's no widespread deployment as far as I know.
Currently there's one running in Winchester, and IIRC a colleague
who looked into it said the speed is 2Gbits/s.
I rather imagine the differences in final power distribution to homes
in the UK and US would make it much less economically viable in the
US -- typically in the UK some hundreds of homes run from a final
stepdown transformer verses less than 10 homes in the US in areas
where powerline distribution is likely to be most effective. The cost
of the equipment at the transformer and the network connections to
such kit is thus going to be much higher per home in the US.