I don't know if I buy it. The jump list isn't really part of the page itself, it's metadata attached to the 'website' in question, so I sort of understand them putting it in <meta>... at the very least, I don't think it makes sense as an inline <menu> element in the middle of the page content. It sucks having all those meta tags there, though, since that's a huge blob of html that has to go in the header of every page when it really should live in a metadata file somewhere on your site... sort of like a stylesheet.