yeah it's been around for a while now, there's some devices you can get that plug into your electrical outlet so you can use the wiring throughout your home to share internet connections with any room in the house, it's a great idea if you don't want to have to pay someone to install extra cabling or you don't want to have ugly cables lying around the house... Having said that though, it's a lot easier (and I think cheaper) to go with wireless these days.