http://www.zutalabs.com/
It seems really interesting, and I do wonder how it really works. Traditionnaly, we have relied on fixed paper printers because that's the way to get your lines printed straights.
Apparently this device can print entire pages and can even print on large plan sheets. I don't see how they would prevent to paper from shifting even slightly under the printer's vibrations. If you want to print plans, they need to be near perfect to your original drawing.
It doesn't look particularly fast, either.