Great article, but it's been posted a few times this week: http://news.ycombinator.com/item?id=2023215 http://news.ycombinator.com/item?id=2023215 http://news.

Great article, but it's been posted a few times this week: http://news.ycombinator.com/item?id=2023215 http://news.ycombinator.com/item?id=2023215 http://news.ycombinator.com/item?id=2030286 http://news.ycombinator.com/item?id=2030286