So I acquired a freinds old iphone 3g, which has some good music on it. Is there a way I can pull some of the music off of it and add it to my own library?
Unfortunately Apple only lets you put songs from Computer > iDevice. Not the other way round It really does suck, as I've been in your situation quite a few times. I think it's something to do with piracy, as Apple wants you to buy the songs yourself rather than upload them from a friend's iPod/iPhone. The easiest way to get them would be to get them off your friend's computer directly.