I think the problem is that e-ink (and similar, e-ink itself is, IIRC, a particular brand) displays are slow (and possibly power-intensive) to update. They are excellent for their optimized uses, where updates are (compared to typical laptop displays) infrequent, but perhaps not otherwise.<p>I know there has been work on faster and color e-ink (etc.) displays, but I don&#x27;t know that there is much progress toward the point where they would make sense for general workloads.