Check out what our friends at American Express are doing with the foursquare API in their new app, Social Currency. Now, when you let your foursquare friends know where you are, you can also tell them what you’re buying and what you’re saving up for. Check in at a restaurant and share the great deal you just got on the best pizza in town. Or check in at a store and upload a photo of the shoes you’ve been eyeing for months.
You can find more info on Social Currency (and tips on how to manage your money) on AmEx’s site, Currency. To see more cool uses of the foursquare API, check out our App Gallery.