For those who don't care about america and their AT&T i've found some useful information regarding the pay as you go 3G iPhone: From O2: The 8Gb iPhone is provided at no additional cost on selected consumer tarrifs only when you connect to a new minimum term contract. Connection subject to status, minimum term contract, credit check & debit debit. Terms apply. I'm not sure what this means in english however so could someone tell me? I presume that it means that you can only be on a certain tarrif.