The CTA Bus Tracker gives us the real-time location of ... a bus. Right now, it's only job is to track the #20 Madison bus. Starting April 7, over a dozen routes will be added.

When Huberman and Brown talk about the future of this program, they would be wise to provide an open API for the live GPS data. By providing access to that real-time data, you enable open source software developers to combine that data with existing open programming interfaces, such as Google Maps.