This New York pub does not have a fixed-price menu. It has a ticker that flashes the (fluctuating) prices of the items it has to offer. So if one drink is in heavy demand, its price will rise, causing the cost of other equivalent drinks to drop. A rush on a particular beer would increase its price, and cause other beers to drop.
Line2 can turn your iPod Touch into a full-blown cellphone. And if you are in a Hi-Fi hotspot, this iPhone app will help you handle unlimited calls—incoming and outgoing—absolutely free of cost.