Okay, so basically the other day I just got a new Samsung Infuse, which is an Android phone clearly, and I used to have the iPhone 4. Which have quite a few differences in my opinion, but my main concern was my music. I wanted all of my music from my iTunes put onto my new phone, but iTunes does not support Android phones, so I downloaded Double Twist. Which did transfer all of my music and stuff, which is great, so it is on my phone, but for some reason every single time I sync my phone (if I get new songs or something) it re-syncs everything that has already been synced. So basically every single song gets doubled. So I have to go back through on my phone and delete all of that music again, which is just a hassle. If anyone knows how to help, it would be greatly appreciated.