Yeah, it's going nowhere until there's something that people actually want to print. When somebody figures this out, though, it is potentially truly disruptive,

Yeah, it's going nowhere until there's something that people actually want to print. When somebody figures this out, though, it is potentially truly disruptive, not in the Clay Christensen sense but in the "whoa Nelly there go the assumptions we've based a good part of our entire industrial economy on" sense.