My spangly new iphone arrives tomorrow so i can see what the fuss is about. Can you download this through itunes now? I have NO experience of apple or itunes so am a total newbie.

The phone is also locked to vodafone and i'm on o2.

Ideally i want to unlock it properly through vodafone and not to bothered about jailbreaking. Should i be?! I'd rather not have hassle of pricking about with dodgy software!