Typesetting it in LaTeX makes it a PDF, so you could zoom in but it wouldn't reformat. However, I can always recompile it at a different size on my computer; I

Typesetting it in LaTeX makes it a PDF, so you could zoom in but it wouldn't reformat. However, I can always recompile it at a different size on my computer; I haven't ever wanted to change the font size of a book while reading it. TeX does automatic hyphenation, and a ton of other magic, so the technology is there. However, it might be too intensive for an ereader--it would probably take too long and kill the battery life. I also suspect there is not much demand--reading English novels on the Kindle is perfectly fine. It could be better, but you'd only realize if you read a better book. Russian is more of an issue, but I don't think Russians make up a big part of the Kindle market. I don't even know if it's sold in Russia.