@mandy I would just enjoy if these ubiquitous always-on devices that are seldom used or changed used e-ink, so their energy use would be infinitesimal.
@mandy I have a 4" yellow/black/white display ordered, but it takes weeks to arrive. Refresh rate for whole screen is like 15s, but then you choose applications that only need partial screen changes and slow is OK.
@mandy i've had this Amazon book reader. it was pretty cool. the battery is dead now though. if i was much more of a reader i would get a new one. // @33MHz