Oh, it does more than just clean up.
iPod to iTunes Track Transfer
This feature lets you quickly and easily transfer tracks from your iPod into iTunes, without having to use a .txt file. By transferring tracks using this feature you will also keep your ratings and play counts.
Unless there's something I'm missing, this would allow you to copy a whole music library into any computer after installing iTunes. I'm not sure Apple would be happy with that. Anyone can do this if they put some effort into it. (The music is in a hidden folder with the names changed to a few alphanumeric characters. The extensions stay correct, and the tags are all there still. I'm sure there are programs that can rename music files based on tags--maybe even iTunes.) But this just makes it too easy to copy iPod music all over.
Sandy let me have the red Nano. It's a special 8GB model tied to some charitable event. (The 2nd generation of 8GB Nanos is officially only black.) This one works great. I reinstalled iTunes and used the same approach of syncing only to the top-rated playlist, then 5-starring the music I wanted on the go. I ended up with 881 tracks weighing in at around 5.7 GB. She still wants to fix the black one, though.
She also gave me this gadget that plugs into the car's cigarette lighter, and broadcasts the iPod music into an FM radio frequency. I've yet to try it. Hey, this would work with the black one, since the unchargeable battery wouldn't be an issue. Hmm.
Edit: Perfect. It works, and makes the black iPod useful. It's
this thing. Comes with 3 preset frequencies, which can be changed. Sounds good for FM. Very clear. It doesn't use the earphone jack on the iPod, which surprised me. I'm guessing the multi-pin plug has a line-level output to work with dockable speakers and what not.