I know it's off topic, but I hate static page numbers. I much prefer dynamic ones because that gives me more of an idea about how long the chapter and book actually is (especially when comparing one book to another with the same font/margins etc.) and it makes me feel better to see the page numbers progressing even if there are more of them. Even when I read books with others I still think the page numbers are problematic because the page numbers change when DRM is removed or with slight changes to the book. Not to mention that most of my friends are still reading paper copies. When I read along with people I usually just reference the chapter. As for quoting, I don't think page numbers are necessary in an ebook because one can just search for the quote and find it easily. According to MLA, when citing an ebook in text only the chapter is referenced. They specifically say not to use page numbers because they change depending on the ereader.
I didn't realize Kobo uses static page numbers when epubs are side loaded (I've only seen non-side loaded examples). That makes me less inclined to replace my Nook with a Kobo, though I'm still thinking about it for other reasons. It seems there are no e-ink readers that use dynamic page numbers
. I really miss Stanza, which I used on my iPhone for ereading before I got a Nook. I'll never forgive Amazon for killing it.