I've been using this app for a long time and it was a big reason for my sticking with my kindle as a reading device. However, the inability to utilise the footnote function (where readers can touch/select a footnote in a page and it will appear at the bottom of the page) rather than having to go all the way to the end of the document, is a real shortcoming. I'm familiar with arguements against footnotes - i.e. that they are a distraction, but if an author inculdes them in a text it is surely because they think it important and it is then up to the reader whether s/he divert her attention from the body of the text to read the footnote or not. In any case, having to go to the back of the document to read them is a much greater distraction. It would make this addon that much more useful-- perfect, even, if it had this feature.