There was a similar topic posted a few days back [http://news.ycombinator.com/item?id=138229 http://news.ycombinator.com/item?id=138229] and here is my comment

There was a similar topic posted a few days back [http://news.ycombinator.com/item?id=138229 http://news.ycombinator.com/item?id=138229] and here is my comment [http://news.ycombinator.com/item?id=138380 http://news.ycombinator.com/item?id=138380]