Onyx Boox Kepler Pro Coming Soon – Android 4.0, Waterproof, Flush-Mounted Carta E-ink Screen 21.04.2016 Nate Hoffelder 17 Comments Here’s an interesting addendum to yesterday’s ereader video from Charbax. Regular TDR commenter Hrafn has identified the 6″ ereader shown late in that video, and posted the info over at MobileRead. It’s called the Kepler, and Onyx has already posted the product listing