IMO companies should give their employees one e-ink screen instead to save their eyes. Most office-style work can be done well on those screens and they are much healthier. I now barely use paper as I use an A4 Onyx tablet with e-ink screen and do most of my notes there. It's so much better than using iPad for that.
My concern with anything e-ink is display latency -- if the display isn't updating at a fast-enough clip, I don't think note-taking would be an enjoyable experience.