[donaltroddyn]

The 7-colour version doesn't support partial refresh and has a 15s refresh time (~0.067Hz refresh rate), so you'd want to be a really confident touch typist.

[Wowfunhappy]

Mind, the black and white e-ink screens would still work for this.

[ranger207]

Sounds like it's time to learn ed.

[jrockway]

ed echoes back the characters you input as you type them. This display would not be able to do that.

[tzs]

Put a one or two line black and white LCD on the bottom to show your ed-like commands, with the e-ink just showing the results of edits.

[pmdulaney]

Thanks...