the online offline convergence! who will get most out of this.....Banks/card companies...or the social networks? More and more trending towards social networks and apps owning the relationship!
In its latest foray into the commerce sphere, Twitter is testing a feature that lets users add discounts from advertisers on the social network to their payment cards. When a user sees a Twitter Offer from a company in their timeline, they can add the coupon to their credit or debit card with a few taps and then redeem it in real time by using the card in-store. After the purchase, the cash back savings appear on their card statement within a few days. Once the first offer is linked to a card, the payment information is encrypted and stored to make it easier to claim future deals. People can remove the information from their account at any time.
http://www.finextra.com/news/fullstory.aspx?newsitemid=26742