<responding to troll> though of course you can copy music off an ipod by copying the mp3 files off it like any other mounted disk, except that they are in a folder with its hidden attribute set.
You don't have to use iTunes, or even an Apple app, to get things on and off an iDevice. For example: http://ecamm.com/mac/phoneview/
Blurb:
Multimedia Is No Longer Trapped on your iPhone, iPad or iPod Touch
Free your Photos and Movies -- Download camera photos and movies in just a few clicks. You can even use PhoneView to export the iPhone's synced Photo Library if you've lost the originals.
Music Made Easy -- Play any iPhone, iPad or iPod Touch music library through your Mac's speakers. Grab music, videos and podcasts from your device with one click.