How about a mobile app which would allow me to pre-order from food trucks? I work in downtown Chicago, and there are a bunch of trucks around everyday (but not within 200 feet of a "real" restaurant entrance, of course!). Imagine that the food trucks all posted their menus to foodtruck.com in the morning along with their schedule of locations/times. I could then see a menu of food available within an N minute walk of my building, pre-order and pay, and then go pick-up my bag of food. The food trucks would just have a net-connected tablet onboard which would alert them of purchases. They could mark menu items as unavailable when they run out. By taking the uncertainty out of deciding to leave one's desk and find a food truck, business could increase. Perhaps owners could also be given geospatial/temporal demand pattern information with which they could optimize their positioning.