Amazon now lets you sign up for its palm recognition service directly from your phone. It’s launching a new Amazon One app on iOS and Android you can use to take a photo of your palm and set up your account, allowing you to start scanning your palm at locations that support the verification tech.Previously, Amazon required users to visit physical locations to enroll in Amazon One, which lets you make a purchase or verify your age based on the palm print linked to your Amazon account. The service...