Floola is a FREE stand alone portable tool that can be used to manage the contents of your iTunes capable iPod or Apple cell phone. It can be run directly from an iPod and can be used to manage your artwork, podcasts, smart playlists and notifications.
YamiPod is a FREE stand alone portable ipod manager that allows you to manage the content of your ipod without even having iTunes installed. This allows you to copy your mp3 and ACC files to and from your iPod.
SharePod is a Free and Portable iPod Manager that can be used to manage the contents of your iPod. For example you can use it to Copy music and videos from your iPod to PC (extract music from ipod) and vice versa.