Ok, this is a step in the right direction. For years I've wondered when you'd be able to select the movies that you want to watch on a flight. Either they'd have a massive server onboard the plane or you could make your selection up to 24 hrs before flight and they'd load it from a central storage. Of course that's until you can call your TiVo from in-flight in real-time :)
Well Virgin America is heading that way. "Red," their in-flight entertainment system, apparently has a MP3 jukebox where you can create playlists that are saved under your name and accessible any time you fly.