I just got the new iPhone 4S and I have a 3GS as my old phone with no way to transfer my contacts. I was told I could save a backup of my 3GS to itunes, then load the backup onto my 4S. Well my 3GS won't backup, it keeps saying "iTunes could not backup the iphone because an error occurred" without any error code. I've wiped my old backup, I've cleared sync history. I'm using a PC with itunes with the latest itunes version 10.5. What can I do to get my contacts over to the new phone?