Yeah, that's one of my main concerns with the Boox. A good friend of mine loves hers [1], but the unclear point of origin, the GPL violations (and I don't even like the GPL that much as a license -- but if you're going to build off of a GPL base, you better follow the damn license!), and the fact that Android -- while flexible -- is not ideal for note taking stuff (my friend said all the Android note taking apps are unusable so you're stuck with the built-in app -- and I'm less confident about the upkeep of that app when the company won't respect the GPL for the base OS/firmware of the device) is why I went with a reMarkable instead.
But Onyx definitely has a much wider variety of E Ink devices that's for sure.
