This iPhone is 8 months old, was unlocked by Apple in late Feb-2012 and is in mint condition as it has always had a screen protector and case applied. Factory unlocked means it can accept any SIM (UK or international) for use without the need for unlocking by an operator. Serial and device IMEI can be confirmed with Apple if necessary. The current installed software version is iOS5.1 but that can be upgraded to iOS6 prior to sale if purchaser so wishes. Includes original box, charger, USB cable, manual and Apple receipt as well as a screen protector. £285 price is firm, serious inquiries and cash upon personal exchange in central London only.