O2, owned by Spain's Telefonica, has sold over 2 million iPhones in the UK, according to Reuters. The carrier says it is pleased with the performance, and attributes the sales to being closely linked with the iPhone in the minds of UK shoppers. "It will take a long time before that goes away," adds O2 UK CEO Ronan Dunne, referring to one-time exclusivity and the entrance of Orange and Vodafone into the UK iPhone market.