Wirelessly posted (iPhone: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_2 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8H7 Safari/6533.18.5)
Use SAM to deactivate. In Cydia install the Bingner repo and then install SAM.
What about those people who don't jailbreak or don't know how to? If vodafone does unlock it, can you just plug it into iTunes and just do a fresh restore?