Homeplug - power line as transmission medium

This is awesome ! Homeplug uses your existing power cabling to set up ethernet class networks in your home., using just your existing electrical wiring ! And this alliance of all vendors in the value chain, has already started coming up with products. Huuuuuuge shot in the arm for home networking and smart homes - i am amazed. A very old article in Commsdesign about the technology gives a brief overview of the challenges faced in using powerline as the transmission medium, and mentions the MAC layer innovations involved