It seems like enough of org's export formats have the concept of page breaks that a generic syntax might be warranted -- I'm finding myself doing lots of exporting to multiple formats. What do people think of that? Emacs already has a convention of using ascii 12 as a page delimiter (though control characters in the buffer look ugly), or we could introduce something like #+PAGEBREAK, or perhaps both.
If this seems desirable, I'll take a stab at a patch. Eric