Irish Rail internally have hours of video from the front and rear of trains plus some limited side view as well.
The new Irish Rail website underdevelopment will make extensive use of google or similar mapping technology to deliver information
There is an existing google map
http://www.irishrail.ie/realtime/
The members area has a link to a demo of some pretty awesome passenger information/journey planner. Irish Rail has a license for this for there new website