I agree, such a device (that could share a lot of the PineTab parts) would be really interesting.
I think the problem so far was that the SoCs available to Pine64 don't have a e-ink display controller, but with the new RK3566 this is now available AFAIK. So it might actually become feasible once development of a RK3566 based PineTab (or similar) is starting.
Edit: The new RK3566 Quartz64 SBC has just been confirmed to include a eink display interface, and the Pine64 store will also have a fitting 10 inch eink screen for it. Thus if someone was to port a open-source ebook OS to it, the likelihood of a Pine64 eink device with the RK3566 will probably increase a lot!
I think the problem so far was that the SoCs available to Pine64 don't have a e-ink display controller, but with the new RK3566 this is now available AFAIK. So it might actually become feasible once development of a RK3566 based PineTab (or similar) is starting.
Edit: The new RK3566 Quartz64 SBC has just been confirmed to include a eink display interface, and the Pine64 store will also have a fitting 10 inch eink screen for it. Thus if someone was to port a open-source ebook OS to it, the likelihood of a Pine64 eink device with the RK3566 will probably increase a lot!
