Not e-ink, but something very similar to that was a thing about a decade ago. To say it wasn't a runaway success might be putting it lightly. https://en.wikipe

Not e-ink, but something very similar to that was a thing about a decade ago. To say it wasn't a runaway success might be putting it lightly. https://en.wikipedia.org/wiki/Optimus_Maximus_keyboard https://en.wikipedia.org/wiki/Optimus_Maximus_keyboard