If you want to make contactless mobile payments in the UK, your options are pretty limited. Apple Pay is only available in the US (for now) and Google Wallet is bound to Gmail transactions and Google Play purchases in Britain. Spotting the opportunity to take an early lead, Vodafone is readying a new Visa-powered alternative. The company already offers an app called "Vodafone Wallet," but it relies on the user managing a separate SmartPass account. To pay with your phone, you first have to shuffle money across from your bank account to Vodafone's virtual piggy bank. It's a huge pain, so the network is prepping an updated app that allows customers to store their card details directly on the phone.