I have been tempted to play with the entertainment screen in airplanes a couple of times.<p>But as it is on an airplane traveling 900km/h 10 000m in the air. I dont feel like poking at stuff that is connected to the stuff that is keeping me and the other passengers alive.<p>Also it i don't feel like speeding life in prison.<p>But those things don't exactly feel like top quality stuff. They feel more like something that than be crashed and taken over in 20 minutes using a teensy++ and a Linux laptop.
I noticed the unmistakable X Windows "X" cursor and gray loading screen on an in-flight entertainment system that crashed on me. I think it was Virgin America, one of their early flights after they launched.
Several years ago, on a transatlantic flight, I observed some strange behavior in a game when I specified a high score name with some special characters. I noticed it would crash and exit back to 'home'.<p>I tried to hack at it by specifying the semicolon and such, but could not get it to do more.<p>I observed they had it at least mildly secure - it would not accept input for some special characters when typed; they would simply not appear on the screen within the game. But clearly there are holes in these. Without more information on the construction it was not trivial though.