My iPhone now thinks that I'm using a different computer than the one I normally used, ever since the update to iTunes 9.02. I don't want to lose all of my app settings/need to reload all of my music. According to this guide, you can make an iPhone sync with 2 computers by copying the iTunes Library ID from one to the other. My question is: Where is this ID stored on the iPhone. I'm looking to ssh in, find the file, get the ID from it, and add that to my iTunes install so that it will sync with it again.