It already is available to the RV market.
www.motosat.com . I did a sat tv install for a guy the other day that had one on his mo ho. Pretty interesting stuff. As for one for the home. I wouldn't recomend them unless they have no other broadband options. Slow U/L speed, tempermental equipment, inability to network (officially) and latency (can't do anything real time on them)are all problems that havn't been resolved.
HTH
RR