Been posted to HN a few times before. Here is one from just over a year ago with lots of comments: http://news.ycombinator.com/item?id=1097235 http://news.ycom

Been posted to HN a few times before. Here is one from just over a year ago with lots of comments: http://news.ycombinator.com/item?id=1097235 http://news.ycombinator.com/item?id=1097235