I have a 2nd gen iPod touch 8gb and want to buy a news one. I have a lot of data on it and I am wondering if there is a way to create a backup via iTunes and then use that backup by putting it into a 4th gen iPod so as to transfer app data. This is so far the only idea I have because I cant update to iOS 5 because of my model, which means no iCloud. If someone could help me figure something out that would be awesome. 