I just want to point out that there are good e-ink color display now! It is just that none of the integrators made a product/device using it yet really.

There is a whole array of "notebook like" e-ink devices being created and released, but they mostly exist in, and target, the chinese and japanese market. Not the Western one. Remarkable is one of the exception and Kobo recently released one. Hopefully we will see more of it.

I personally think that the reason for this lack of device targeting the Western market is that the Kindle basically flooded the board and killed most of the use case. Sadly :(