I had the first app on the iOS App Store for live UK train times back in 2008. It is no longer available for legal reasons. I wonder if this means I can rerelease it :)
Good point - also they give ample time for changing, and if you are a last-minuter like me sometimes you can leg it and save 20 minutes (there was one long journey I saved an hour on) .. it would be nice to know about these good-day connections.