I don't know. The only thing I like about it is the simplified Chinese interface. About others, first of all I really don't like the epub much, I don't see the advantage of it. As for the PDF, reflow would be nice but does it show correctly? I've heard on some devices reflowed PDF doesn't show very well. About the font darkening, I say why bother? The contrast on kindle is good enough. The firmware switching thing might sounds good but since I've never tried it, I really don't like the idea of it, sounds little unsafe to me.
While I admire my fellow citizens incredible works, I must say this firmware is only practical if you own a kindle in China, or you really need a lot of features focused on PDFs instead of books, of course only if those features work out smoothly(to my knowledge cracking up PDF formatting is always not a very good idea).
Last edited by ttluisa; 05-13-2010 at 02:26 PM.