I was trying to tease a little more "guessable" info from the photo as you were typing that about the PocketBook 360-- the buttons on the "Jetbook Mini" looked kind of large, so I found a PocketBook 360 image and scaled it to roughly match the "Jetbook Mini." Turns out that the buttons are close to the same size-- those on the "Jetbook Mini" look proportionately larger, but that could be just an artifact of the imperfect scaling.