Here are some discussions: http://news.ycombinator.com/comments?id=10748 http://news.ycombinator.com/comments?id=10748 http://news.ycombinator.com/comments?id=1

Here are some discussions: http://news.ycombinator.com/comments?id=10748 http://news.ycombinator.com/comments?id=10748 http://news.ycombinator.com/comments?id=10875 http://news.ycombinator.com/comments?id=10875 http://news.ycombinator.com/comments?id=12619 http://news.ycombinator.com/comments?id=12619