I bought my iPhone 3g on launch day. I was previously on a 1 month rolling O2 simplicity account. The guy selling me the phone told me that my account would switch to the iPhone tariff account. However, this has not happened. I have already been billed from my August - September bill (obviously billing me from calls made between July and August), and am now on my September - October bill. Considering I bought the phone during the July, and my contract renews itself in the first week of each month, shouldn't my calls being billed for my upcoming bill be on the iPhone tariff? Here's a link explaining how O2 bill in case I didn't make enough sense: http://www.o2.co.uk/shop/faq.html#d5 I have also noticed that my number is not valid for Cloud wifi when they ask for my O2 number, even though this should be included with my iPhone. If anyone upgraded from a regular o2 tariff to the iphone tariff i would be keen to know if yours has switched yet. Thanks!