Four so far: http://news.ycombinator.com/item?id=1485587 http://news.ycombinator.com/item?id=1485587 http://news.ycombinator.com/item?id=1485640 http://news.y

Four so far: http://news.ycombinator.com/item?id=1485587 http://news.ycombinator.com/item?id=1485587 http://news.ycombinator.com/item?id=1485640 http://news.ycombinator.com/item?id=1485640 http://news.ycombinator.com/item?id=1485646 http://news.ycombinator.com/item?id=1485646 http://news.ycombinator.com/item?id=1485695 http://news.ycombinator.com/item?id=1485695