Hello, John, yes, you can read Kindle and Kobo on Poke2. You can install the public library app to Poke2. It may not support well since the App is designed for the LCD screen. But Poke2 provides the optimization option which allows you to disable some animation features of the App to better fit E Ink screen. Yes, you can use FBReader app, which you can download directly from our App store. And Poke2 supports all book formats. What book format do you use most often? We can help you check.
You can join our Facebook BOOX Fan group, where you can ask questions and a lot of our BOOX experienced users can give you even better answers from their experience.