If you own both an iPod and iPhone/Touch, iPod 2 iPhone is a great tool which allows you to transfer your music and video Between them.
Until now this hasn't been possible without losing all your existing songs. iPod 2 iPhone gives you The Power to Take Control of your Music Collection.
The way you view your music is up to you, sort by Artist, Genre, Album, or even group Similar songs together, then drag and drop them onto your iPhone/Touch (or vice versa).
Quickly find all the songs which are present on your iPod but not on your iPhone/Touch, and transfer the ones you are missing.
It is easy to end up having duplicate songs on your iPod/iPhone, iPod 2 iPhone tracks these duplications and allows you to remove them in seconds. It also optimizes storage space on your iPod/iPhone allowing you to store more songs!