You saw it in the Steam Machine reveal, and now it's finally happening: E-Ink faceplates. The twist in this tale though is that Valve isn't the one making it.
Instead, that honour goes to Shenzhen-based peripherals and accessories brand Jsaux. If you want to be near the front of the queue for Color E-Ink, Mono E-Ink, or Color Dot Matrix faceplate, you can drop your email here.