While iTunes provide an easy to use iPhone data backup and restore process, there are times when a user just needs to get there contacts (address book) exported and backed-up in the more widely used and standardized format like .VCF and .XLS (excel).

Free iOS utility "My Contacts Backup" achieves exactly this for users, letting them backup and email there current iOS address book. These backed up contacts can then easily be restored any time by simply opening .vcf file fro their mailbox.

"My Contacts Backup" does not require a jailbreaked phone and can be downloaded free of cost from the AppStore link below.