The application is built on top of several Yahoo! APIs.
The maps for iamcaltrain.com were built using the Yahoo! Maps Ajax API.
Finding the nearest station to an address uses the Yahoo! GeoCoding API.
Driving directions come from Yahoo! Maps, not via an API.
Station photos are supplied by Flickr, using a custom badge.
Caltrain station and route data was scraped from the caltrain website by trained monkeys. The results of their work can be downloaded in the form of a MySQL Dump.
iamcaltrain.com was built by Cal Henderson. Feature suggestions also came from Stewart Butterfield and Chris Messina.
The app was designed by Chris Messina of Flock.
The station service icons were designed by Luke Dorny.