Originally Posted by Ortep
This has nothing to do with the MobiReader. It only is depending on the author. If you want page numbers in HTML, PRC, PDF, DOC, TXT and RTF, you can do that now. Simply key them in. But don't be suprised if the end up in the middle of a page. This is a problem if you try to convert a PDF with page numbers in the text to PRC. The output looks horrible. Page numbers all over the place. You can of course create PDF's with the screen size of the Cybook in mind and read them that way. The only problem is that you can't change fonts types/sizes and that is not reflowing. (At this moment)
By embedding page numbers in the markup the page numbers should of course not be visible in the text (unless specified by the reader) but used for references, navigation and information, see the link to Adobe in previous post.
While this method would need to be part of the format specification of the relevant format (Adobe has suggested it as an addition to .epub), the other approaches would not need to be part of the specification.
The progress bar is better than nothing but it is not accurate enough when navigation smaller portions of larger texts.