Good overview of the latest paypal mobile wallet (and offline features) … they have a lot to overcome to become a viable in-store solution.
The most notable feature of PayPal’s mobile wallet is payment flexibility. Users of PayPal’s mobile wallet application will be able to choose how they want to pay for purchases even after the sale. That means a purchase can be transferred to a different credit card, a debit card, a PayPal account or even a store gift card, if necessary, directly through the PayPal app. The payment could also be split between multiple cards/payment sources.