SharePod
I have a shiny new iPod Touch 16GB, but to carry all my music around, I still rely on my 60GB iPod (Photo). Now, I have five computers that I use regularly (two at home, two at work, and a laptop) and getting music from my home library to my work library is sometimes painful.
SharePod solves that by allowing me to manage my music from a free, small program I keep on the iPod itself. It’s just a few megs, and you can add and remove songs, create and change playlists. When my hard drive failed in my home PC, SharePod exported all my music, playlists, ratings, playcounts… everything into a format iTunes could import.
SharePod is donation-supported, so take a look, and if you like it, shoot Jeff a couple of dollars using the donation link on the Download page.