Thoughts on adding a heatmap feature to this so that routes run more often change to a certain color? I use this website (http://www.jonathanokeeffe.com/strava/map.php) to create a heatmap of where I run the most. If you could make a setting for a global heatmap of everyone running in your city to see where people run more often then others (could be for a variety of reasons like safety, bathrooms near, etc…) it could let you find better places to run depending on the need. Also a personal heat map for your live map would be cool that you could compare to the global one. Just a thought.