Previous submission and discussion: http://news.ycombinator.com/item?id=1539538 http://news.ycombinator.com/item?id=1539538 http://news.ycombinator.com/item?i

Previous submission and discussion: http://news.ycombinator.com/item?id=1539538 http://news.ycombinator.com/item?id=1539538 http://news.ycombinator.com/item?id=2024576 http://news.ycombinator.com/item?id=2024576 There's some more submissions, but I think these are the only ones with a decent number of comments.