Thanks for the link, that looks interesting. I have to see, where I could buy it (Amazon doesn't ship it to Germany). I will certainly check this out for tinkering with my Pie. Of course, I wouldn't buy the ReMarkable just for using it as a second display, but that would be an added value, if it could be done with some more software I can install on it. My main usage would be as a reader/note tool.

Waveshare have lots of such screens, big, small, some colour: https://www.waveshare.com/product/displays/e-paper/epaper-1....