Export annotations/notes as (structured?) text, not just PDF.
For academics like me it would be really useful to have their notes and quotes in text format so they could continue to work with them in their writings. The current PDF format is good only for re-reading notes and in a book's case it is just unmanageably too much.
Even better would be if it would export the notes in a structured manner, i.e. with information about on which page/under which chapter the note came from.
András Novoszáth commented