Facebook has teamed up with payment processors PayPal, Braintree, and Stripe, in an attempt to simplify mobile payments.
The system allows Facebook members (who have turned over their credit
and billing info) to click a 'Autofill with Facebook' button when
checking-out on a mobile app. Facebook will then verify the details, and
securely transfer a user's info over to the payment processing company.
The move is likely aimed at gathering more data on user behavior, which
can be used to increase the prices Facebook charges for mobile ads.
Whether or not the feature takes off however, will depend almost
entirely on how willing users are to trust Facebook with their credit
card data.