Substantial discussions from 3 weeks ago, and over a year ago:<p><a href="http://news.ycombinator.com/item?id=3003841" rel="nofollow">http://news.ycombinator.com/item?id=3003841</a><p><a href="http://news.ycombinator.com/item?id=1540567" rel="nofollow">http://news.ycombinator.com/item?id=1540567</a>