Somewhat recently Lenovo had the experimental laptop "ThinkBook Plus Gen 4": https://psref.lenovo.com/WDProduct/ThinkBook/ThinkBook_Plus_G4_IRU https://psref.le

Somewhat recently Lenovo had the experimental laptop "ThinkBook Plus Gen 4": https://psref.lenovo.com/WDProduct/ThinkBook/ThinkBook_Plus_G4_IRU https://psref.lenovo.com/WDProduct/ThinkBook/ThinkBook_Plus_... It featured a netvertible design that had a regular screen on one side and an e-ink on the other. I thought that was a pretty good idea, though this laptop had some questionable decisions, like only usb-c as IO.