[caption id="attachment_3407" align="alignnone" width="500" caption="Image via Foursquare"][/caption]

Old and new marketing techniques combine in this innovative out of home installation from German dog food manufacturer, GranataPet. Simply use foursquare to check-in to the billboard and a tasty treat is dispensed for your faithful four-legged friend. Instant gratification for both you and your pooch!

The installation was powered by a simple integration with the foursquare API. A check-in at the billboard signaled a small block box to dispense a treat into a bowl.

This a pretty ingenious way to do sampling. I can imagine installations like these dispensing samples of hand sanitizer on the other side of airport security or sunscreen samples near the beach. Think about it.