Early adopters of mobile wallet services are brave enough to hand over the keys to their finances in the name of convenience. When youre signed up to a plethora of loyalty schemes, though, inputting all these details before ditching the plastic could be quite the opposite. Google doesnt want you burdened with such tasks, and in an impending update to its Wallet app for Android, has said itll introduce a new feature that adds loyalty cards with one click of your smartphones camera shutter.