How to Sync your iPhone / iPod Touch to 2 iTunes libraries
In this tutorial, we learn how to sync your iPhone to iTunes. First, go to Cydia on your phone and go to sources, then edit and add 'http://redwolfberry.com/rupertgee/cydia/'. After this, search for the package SwitchTunes and install it. After you install this, open this up on your phone, then sync your computer with this program. After this, when you open up SwitchTunes, you will have all your same music on this. From here, you can sync the music with your iTunes on your phone and listen to music on several different programs on your phone! This makes it easier to listen to music and transfer it between different sources.