So the new technology is Morse code?

Ah, the world has come full circle.

...the epileptic attacks are just side effects of streaming to my media centre

Sounds promising, but beware epileptics. Also, we still do not know the continued affect of radio waves on us, and now we are going to expose our self to organized light emissions.

This is unfounded, but what if this becomes disruptive to our biology? Just because our eyes cannot perceive the flashing lights, what of our other senses? And How Might they react.

Little fun for thought =)

230Mbps but over what distance?
The transmission method is still going to be overlaying data onto the AC signal, the same as 101 LAN over mains units already do, and although mine were rated at 86Mbs, which they could do when plugged into the sockets next to each other, move them a bit further round the house and they're down to 40Mbs. I doubt I could even get them to sync from 3 houses down the road on the same transformer phase, let alone long distance.

The only "new" idea here is replacing the last couple of meters of bidirectional cat5 delivery with a unidirectional flickering LED.