Great article, but it's been posted a few times this week:<p><a href="http://news.ycombinator.com/item?id=2023215" rel="nofollow">http://news.ycombinator.com/item?id=2023215</a>
<a href="http://news.ycombinator.com/item?id=2030286" rel="nofollow">http://news.ycombinator.com/item?id=2030286</a>