yeah, i'm 100% in support of asciidoc as the preferred format, it's a complete and sane syntax... i'd describe it as being like the PostScript of graphical text rendering, and of course it can flatten down to paper as well, i think it does it even better than html as used in epub

i can't see myself printing stuff very much, and if any, it would have to be laser or dye sub for durability, but this is a nice feature