To be specific, it's just the # hack, or fragment hack if you like. The bang leading the fragment is a Google-specific thing to help the Googlebot crawl your content.
http://stackoverflow.com/questions/3009380/whats-the-shebang...
http://stackoverflow.com/questions/3009380/whats-the-shebang...
The solution with "mangled" URL seems to force a reload on every new request to lifehacker as well. Just like what Facebook did with the hash-reload.