Two previous discussions from the past year:- http://news.ycombinator.com/item?id=1689065 http://news.ycombinator.com/item?id=1689065 http://news.ycombinator.

Two previous discussions from the past year:- http://news.ycombinator.com/item?id=1689065 http://news.ycombinator.com/item?id=1689065 http://news.ycombinator.com/item?id=1260883 http://news.ycombinator.com/item?id=1260883