Personal train and bus reservations come to Google Now after latest update
You know how Google Now goes through rental car and hotel reservation information on your Gmail account? It will now do the same thing with your bus and train reservations, and will send you a Google Now card to remind you of your reservations.
The update also includes bug fixes and the usual enhancements. With Cortana beginning to make some waves as the Windows Phone 8.1 virtual assistant, Google Now needs to keep offering the information you need, BEFORE you need it, to keep pace.
source: GoogleSearch via AndroidCentral