Tools like Google Maps have been a staple of calculating travel times and paths for a few years now. These tools are becoming increasingly useful as Google adds features such as Google Now which combines location awareness with Google's ever-expanding corpus of information about your life into some incredibily useful real-time alerts and information.
Isoscope takes all of these path-finding algorithms and combines them with traffic data to show you something really compelling about space that no other app has really done. Now you can discover the "mobility" of locations.
The concept is a little confusing at first, but its definitely worth taking a look at. Try finding where you live or work on the map and clicking there first.
Isoscope: Exploring Mobility, by Flavio Gortana