Let's make a petition for someone to produce this e-ink open arm laptop. I'd buy one immediately.
On the down side, it probably only appeals to a select number of geeks, and probably not enough to make a kickstarter viable.
I wonder how it would be on a newer eink screen.
http://www.youtube.com/watch?v=FdmX52SCpG0
not glorious.
Although I don't know how well contemporary eInk displays would handle partial updates. If it e.g. doesn't save much energy compared to a full-screen refresh, there might be huge difference in battery usage, as even slower typists would cause more redraw than the page flips caused by your average reader.
http://www.engadget.com/2010/07/19/how-to-install-pixel-qis-...