Imagine getting hit with a food or drink craving while you're sitting in your seat at a sporting event. The seat cost you close to a left lung, so you don't want to waste a lot of time walking to the concession stand (and dealing with all of your fellow sports fanatics). So you text your order on your phone, and it appears before you a short time thereafter.
Sound like a great idea, right? To experience it, you'd have to be a fan of the Salt Lake City Real major league soccer team, and have bought your seat at Rio Tinto Stadium in sunny Sandy, Utah.