- Most ebook readers I've used give you page numbers or something helpful like how far, percentage-wise, you're into the book. The book shows a progress bar, but again, it doesn't tell you the percentage of the way you're into the book, and it's useful to at least know the percentage for apps like Goodreads, where you can report your book reading status by last page read or percentage into the book.
- If I move around in the book, I have no easy way of knowing where I was if I forgot to bookmark or highlight near my last reading. The new option in some Kindle books allows you to scroll through a book, while it holds the last page read in the background. Something like that would be useful :)