Nope. They have been selling them for years.
The catch is they are slow-flow. Since it is at home, you plug it in and fill overnight.
http://www.brcfuelmaker.com/phill-domestico-prodotto-brc-fuel-maker.aspx
U.S. price for the Phill is $4,500,
But Eaton is supposed to be bringing a unit out for $500.
http://gas2.org/2012/07/24/eaton-developing-500-home-cng-station/