There appear to be some e-paper solutions but they're expensive.
Honestly I think I'd rather go the George R R Martin route: take an old laptop with decent screen and keyboard then install a barebones environment. It could be as simple as booting straight to a full-screen vim/nano with no distraction installed.
I wish I could do something like that for coding, unfortunately when I program I usually need a browser and internet access to browse docs so I can't remove that. Maybe I should see if I can survive with only elinks or some low-featured web browser.