Reading all the negativity here reminds me of the iPod reception back in 2001! This is prescient y’all. This is the technology future I want, not that dystopian blade runner world!
Except that eInk has been around for decades without much breakthrough you'd see in even LCD/OLED technologies. This cannot be easily explained off as lack of R&D investment. IMHO the scalability is the biggest hurdle. That, and the lack of even basic coloring, let alone full CMYK.
It's not even color. A letter or a4 sized tablet is out of the price range most people. Especially grad students or recent PhDs who'd have a huge use for it.
I used a Motorola F3 in 2006 and got my first Kindle in 2008. Except seeing small e-ink screens in supermarkets I haven't seen any other mainstream e-ink products or solutions. It's a shame the tech is stagnating.
Most of us have been dreaming of mounting an affordable A3-sized e-ink display on our walls.