I use Calibre on Linux and have a kindle (not sure the model but it has touchscreen and a built in light).
I'm wondering if there's a way to get these readers to move endnotes to the bottom of the relevant page (ie, to turn them into footnotes)? I find it to be a hassle to have to click away from the page i'm reading in order to pursue a footnote. In print versions of the ebooks I'm reading all the notes are footnotes rather than end-notes and it makes for a much more fluid experience.
