O2 releases its mobile wallet app

■ Yesterday saw the launch of O2 Wallet, the telecom giant’s answer to mobile banking. The app allows customers to transfer money to others – up to £500 a day – and digitise their credit cards to facilitate mobile shopping. The digital service cannot yet be used to pay in shops by tapping a phone on a special device, but O2 said the app will soon evolve to include contactless payment.