I'm planning to restore my iPhone while updating to iOS 4 since I've bee using the same old backup for 3 years or so now, installed a bunch of thing etc... so I want to start from scratch. The only thing I don't want to lose are my SMS. I also don't want to jailbreak my iPhone. What are the solution to backup only my SMS (so not regular iTunes backup) and then restore that only to my freshly installed iOS4? Thanks!