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 ;-)