YamiPod - Free Mac & PC iPod Backup Program
When I decided to backup my iPod today, I found out my Life2Go application has quit production and was unable to read the music on my iPod. So I went out to MacUpdate to find another. That’s when I came across YamiPod.
YamiPod is a free application for Mac, Windows and Linux that will manage the music on your iPod. I downloaded it, exported all my songs to a DVD and am burning a backup disk as we speak. This is a great example of a free application that just works.
YamiPod has a few other features too besides being able to backup your iPod. Like removing duplicates, finding lost tracks, lyrics, notes and back up playlists.
It’s a great application and one I suggest everyone check out. Plus, you should backup your iPod at least once a month as you never know when it’ll just freak out on you. 
