Very interesting. I'm just curious to know how much of your battery you would save. I think Dawei is right. A lot of power will go towards powering devices you probably won't be using. How you would turn those off I don't know. Using a Linux system is obviously the way to go, as it won't use as much consumption as a windows OS. (and you can limit it more). If you happen to get this idea working, let me know, im curious to see the difference in saved power :p . But the time you put into it, probably won't be worth it. It would be easier to buy a mp3 player or ipod. Hell, even a cd player would do. As far as I'm concerned, if you take a laptop on a plane, you use it for working or games or something. not JUST playing music....lol. Most people on planes listen to music while they sleep. It's uncomfortable enough as it is, without having a big bulky laptop sitting on your lap.
