I hadn't seen that. If carbon nanotube can effectively be printed with a 3-D printer it's only a matter of time until all sorts of things can be created in this manner. The key is effectively aligning the CNT's. In fact, with the right cartridge I wonder if CNT's could be printed with our common everyday 2-D printers and create all sorts of different circuits when printed on the right media. I know all sorts of things can be done with 3-D printers, but if CNT's properly aligned can be added to this mix, the potential of these printers will grow dramatically.
CNT's can be used to create all sort of electronic components, from computer chips, flat panel displays, etc. to the batteries and wires handling the current. It's hard to imagine a functional computer, tablet, etc. being printed, but that may be possible in the future.
Gary