Just got off the phone with Orange to see if they could send me a Micro Sim to use when I purchase the iPhone 4 and the short answer was yes. HOWEVER she did say that for customers such as myself who are currently on a monthly contract with them using a normal sim card who want to get their account details moved over to a micro sim will have to change their tarriffs slightly. She said that the terms and conditions they have been given state that customers must move to an iPhone4 tarriff which is an extra £10 per month but does come with unlimited internet (thats actually 750mb as we all know) and free BT Openzone WiFi, in order to get your existing number account details moved to the new Micro sim. I was on a 1200 min £35 contract which with the new iPhone4 tarriff will take it up to £45, but have decided to offset some of the cost by lowering my tarriff to a £30 900 min per month, therefore totaling a £40 which the iPhone add-on. It is a bit annoying that they aren't simply doing what O2 are by offering an online service that you just enter the new sims SSN code into and it copies the details over for you for free, but I didnt fancy cutting the card, screwing it up and not having any use of a phone till a replacement normal sim arrives, as Orange say they wont replace lost big size sims with Micro sims.