Slightly OT: Are there any large/general-purpose eInk displays/devices?
I really wish there was one big enough for papers/math books that wasn’t super expensive. I love reading on my Kindle but I basically can’t use it for anything work related.
There is Sony Digital Paper  but last I checked it was prohibitively expensive for a tablet (>$1100)
I keep wondering whether the new high-ppi displays on kindle/kobo could be juuuuust decent enough for most papers…have yet to try them out though