Just had a call to three different Apple stores, including the one I was going to go to tomorrow. I am a new O2 customer, but I am almost 100% sure that the "Please go to an O2/CPW store" statement is representative of the fact that you cannot upgrade at ASs because there will be no iphone 3g tomorrow at ASs. Two of the locations confirmed this fact (and have even said nothing has been announced and they have not recieved any stock yet) and the third said it was too ambiguous to tell. I will be making a round trip tomorrow. Dash to my local O2 store at 7:30, see if there's a line, if not then I will stay there, if so then I will get my dad to drive me past 100mph to Brent Cross shopping centre where there's a CPW, an O2 AND an apple store.