Thanks for the reply... at least going to iOS7 wont make the phone totally useless then! I hate that you can't roll back to previous iOS releases if you come across a problem!

I'm not sure about the rSAP being the issue for contact photos/contact addresses etc - rSAP is a remote sim access protocol and as far as I'm aware, the contact photos are not stored on the sim? Nonetheless, I'd be interested to hear from anyone who has jailbroken their iphone and got rSAP running and working to see if it does increase the functionality of the phone with the VW system.