Hi, I am thinking of upgrading to iOS 5 on my iPhone 4. Some quick questions: 1) Will I lose my text messages? I will be backing up/syncing prior to upgrading the OS. 2) I don't plan to use iCloud, except to possibly sync music from computer to phone. Does it only OTA sync songs purchased from iTunes, or will any music in your iTunes library be stored in the cloud and appear on your iPhone? TIA!