READER Enhancements
One thing I've been wanting is to be able to assign dictionaries to individual books in the reader. So, I could select, for example, only 3 dictionaries to search for a Harry Potter book, and (again an example), select my personal HP_Names dictionary as the first one in priority, etc.
A second thing, again for reader, would be a hierarchy for books, so that I could put them into categories. This is partly because the screen is so small that there's a lot of scrolling to get to the book I want. I also OCR textbooks, and put those on at the same time.
I've mentioned (a while ago), about wanting to highlight characters (perhaps a person's name), and be able to generate a dictionary entry right there on the spot, or at least put into a deferred list for later processing.
Able to export notes, and able to generate a note that includes highlighted text.