I'm soon about to switch mobile providers here in the UK to O2. I'm going for their £45pcm plans, but ive already got the iphone, so it won't be one of their special 'iphone' plans that include unlimited data.

What I'm confused about is what makes my £45 plan different to the iPhone £45 plan? Does anyone know if I can ask for the data option to be enabled? Or is it just that there are specific setting I need to put in on the iPhone's edge settings config page? If so, does anyone know what the O2 iPhone edge settings are?

Thanks very much. I doubt this is the kind of thing I can call O2 and ask about ;-)