At the 2012 Mobile World Congress in Barcelona, Spain, CNET visited the NFC Cafe to see the many possibilities for mobile payments.
Park and pay
On my second day at Mobile World Congress last week, I took a short break from photographing new smartphones and visited the NFC Cafe in one the cavernous exhibition halls at the Fira de Barcelona. All right, I really didn't have lunch, but I took a tour of the various solutions for NFC (near field communications), a technology that uses your mobile device to pay for almost whatever you'd like. In the first (and perhaps the most useful) demonstration, we're using an NFC-enabled Samsung Nexus S to make a payment at a parking meter. Once you touch the handset to a "tag" on the meter, the payment will deduct automatically from the credit or debit card linked to the mobile payment system.