I really want to like the more recent devices from Boox. The display tech is just about there with their "Super Refresh." It works well enough for most apps where you are scrolling. Problem is that the software is pretty buggy and can become randomly unresponsive to touch input, which can be pretty frustrating. This has been true on the Tab Ultra, the Tab Mini C, and the Palma 2.

Still, Boox tablets are the closest to what I've been looking for: an eInk device with enough flexibility that I can read more than just books on it.