The minimal thing is just to literally see what he sees, maybe backwards, I don't know. And that can be done at the pixel level. So you're right, John, that then the lowest common denominator becomes what you would expect a physical version of this thing to behave. The dilemma of printing is almost funny because anybody who's used Google Docs to collaborate online with somebody knows that staring at the same document and being able to edit it with other people is really, really powerful.