dupe: http://news.ycombinator.com/item?id=115216 http://news.ycombinator.com/item?id=115216 http://news.ycombinator.com/item?id=187231 http://news.ycombinator

dupe: http://news.ycombinator.com/item?id=115216 http://news.ycombinator.com/item?id=115216 http://news.ycombinator.com/item?id=187231 http://news.ycombinator.com/item?id=187231