i love this kind of thing and i hope someone figures out a way to make it work commercially. https://www.theverge.com/2024/5/23/24163225/daylight-dc1-tablet-livepaper 

 i'm watching this one closely too. https://www.indiegogo.com/projects/the-minimal-phone-first-e-ink-qwerty-phone/x/10057575#/