myTransAlert is a free iPhone application designed to ease daily mass commute. This app eliminates time wasted waiting for a train or bus at the stop by providing automated alerts. Commuters can know exactly when their next train or bus is departing as they approach their stop. myTransAlert is the only transit app in the world that alerts the user based on their location and departure time preference. In-app upgrade provides real-time train and bus status (including delays).
Link to the video: http://www.youtube.com/watch?v=yDJwUpEDHFE
Link to app in the App Store: https://itunes.apple.com/us/app/mytransalert/id542757147