I don't have a definitive answer for you, but here are some more references: http://searchyc.com/earthshaking?sort=by_date http://searchyc.com/earthshaking?sor

I don't have a definitive answer for you, but here are some more references: http://searchyc.com/earthshaking?sort=by_date http://searchyc.com/earthshaking?sort=by_date http://news.ycombinator.com/item?id=1477213 http://news.ycombinator.com/item?id=1477213 http://news.ycombinator.com/item?id=1476852 http://news.ycombinator.com/item?id=1476852