e-ink is the perfect computing technology:
battery life measured in weeks, not days
perfect viewing from every angle
implies simple user experience
kinda cheap
easy to wield for developers
e-ink isn't quick: you can't just scroll, usage is more intentional, more focused.
My favorite e-ink computers:
Remarkable Paper Pro Move: digital handwritten note-taking machine, powered by a neat color-enabled screen.
Kobo Sage: 8" of crystal-clear, backlit, color temperature-configurable reading bliss.
Kindle Voyage: old friend, now repurposed as a smart frame.
XTEINK X3: new hackable friend, small enough to bring with me everywhere I go.