I think the general answer in that the current generation of Kindle and similar readers were created to read paperback novels, not for technical documents. The

I think the general answer in that the current generation of Kindle and similar readers were created to read paperback novels, not for technical documents. The same way it takes a lot of hard work to create a word processor for technical documents (compare TeX to MS Word), it will take a lot of work to create a good reader for such documents.