Spotted a bug on this. If you go back or forward in your browser to a blog post, it just shows a bunch of JSON code. You have to reload to get the site to properly show.
Could be changed to only preventDefault/stopPropagation if it doesn't match one of the specially tagged links, or by setting up a different selector for the specially handled links.
Mislav wrote a great post on how to do this robustly: http://mislav.uniqpath.com/2011/03/click-hijack/
Hope that helps!
But either way, I'll be keeping an eye on this!
$.ajaxSetup({ cache: false });