http://googleblog.blogspot.jp/2010/05/wifi-data-collection-u... links to http://static.googleusercontent.com/media/www.google.com/en/... which explains how it happened in the executive summary and then in way more…
http://googleblog.blogspot.jp/2010/05/wifi-data-collection-u... links to http://static.googleusercontent.com/media/www.google.com/en/... which explains how it happened in the executive summary and then in way more…