Coca-Cola Launches Mobile Payment System - Partners with Google
anidea.com
anidea.com
Going beyond that, I would absolutely kill to see NFC-enabled parking meters. Using credit or debit all the time means I don't accumulate coins anymore in my car. So then I have nothing to pay parking meters, and I often end up having to take a gamble on getting a ticket.
The whole program is actually really interesting: the meters update their prices by 25-50¢ each month to attempt to meet congestion targets per street.
Plus they have an API providing app developers with meter information (including current usage) http://sfpark.org/how-it-works/developerresources/.
The video (http://sfpark.org/about-the-project/) explains it really well.
In version 2.0, you will get a discount for automatically posting your purchase on G+.