This article discusses what can be done with just time and location, if you just treat them with a bit more smarts: http://news.ycombinator.com/item?id=4489121

This article discusses what can be done with just time and location, if you just treat them with a bit more smarts: http://news.ycombinator.com/item?id=4489121 http://news.ycombinator.com/item?id=4489121