As I write this, Jocelyn is waiting at Durham station to catch the last train back to York after a night out with friends.  So it is that I've come to discover Live Departure Boards, which allows me to see the same information J is looking at on the overhead boards at the station.  In fact, I get to see more info, because I drill down to view a particular train (from the perspective of a particular station along its route).  So I can not only see that J's train, the 2325 from Durham, is now expected in Durham at 2351, but also an estimate of the time it will arrive in York.  What a neat use of technology - good work, Thales.