Caltroid is a Caltrain schedules application for
the Google Android platform. It has the ability to
automatically locate the nearest station using
GPS. This application is aimed at commuters on the
San Francisco Peninsula and in the Santa Clara
Valley, California, in the United States. Caltrain
is a commuter rail line that runs from eastern San
Francisco, California, at 4th and King Streets to
Gilroy, California.