Quick deep-linked url to look specifically at San Francisco for those interested (this map really only starts getting interesting when zoomed pretty far in to a

Quick deep-linked url to look specifically at San Francisco for those interested (this map really only starts getting interesting when zoomed pretty far in to a specific city) http://labs.strava.com/heatmap/#13/-122.45242/37.76345/blue/both http://labs.strava.com/heatmap/#13/-122.45242/37.76345/blue/...