Orange UK has launched what it says is the first contactless mobile-phone-based payment service, allowing customers to make purchases up to the value of £15 (US$25). The service has been developed in conjunction with Barclaycard and will use the credit card company’s network of contactless readers which is deployed in more than 50,000 UK stores. The service uses a secure, SIM-based solution but initially is only available to customers who buy a special version of the Samsung Tocco handset.