how would you unlock the phone? Jailbreak? Also what colour is it in?
Yeah as long as it hasnt changed too much from a month or so back i can unlock it via jailbreak. Its a black one.
not too keen on a jailbroken one, can it be factory unlocked via your network provider?
Yes, your network provider can unlock it, as I have looked to this regarding taking my iPhone to Canada. They may charge you £20... but they can do it at the touch of a button.
But don't go to the "vodafone' shop as they will tell you to go to the apple shop, and the apple shop will tell you to go to the provider
Just phone the provider and job done