I've currently got a B&N reader (essentially a Lenovo M10 HD) which I don't like all that much as an ereader - a bit heavy, battery life isn't good. I had a Kin

I've currently got a B&N reader (essentially a Lenovo M10 HD) which I don't like all that much as an ereader - a bit heavy, battery life isn't good. I had a Kindle in the past and really didn't like that closed ecosystem. I'd like to get an epaper reader and was looking into Onyx Boox - but after reading this article that's off the table. What's left? Kobo?