Passengers know far better than the flight deck crew where they are and when they do arrive by virtue of the IFE system, no need to announce routing or times.
How does the IFE system calculate these; is there a hookup from the flight deck systems to the IFE?
What sort of isolation goes in there anyone know; IFE systems seem quite vulnerable to PAX interference if someone wanted to and knew what he was doing. I've seen screens "Kernel Panic" and drop to Linux console quite often. The look on PAX face is memorable when confronted with a phosphorescent green-on -black "Kill Kill Kill" message.
