Interesting, I've been wondering for years why nobody makes e-ink keyboards. I'm old enough to remember the $1,200 Optimus keyboard that had OLED screens in each key. Everybody wanted one, but then it turned out they were total shit to use. E-ink should have far fewer challenges than oled screens though. Just a bit of feedback: your product page doesn't tell me anything about the hardware design. I would want to know what kind of switches you are using, materials, travel distance, tactility, etc before I would consider buying one. You might want to include some detailed technical specs on another page if you want to attract the hardcore keyboard nerds. While they aren't a large market, they are influencers. I'd also like to see some video of the keyboard being used before I plop down $200 on a preorder.