The electronic flow of information is (nearly) instantaneous. But e-tailers selling physical goods must still deal with the physical flow of physical products. The web may be global, but delivery is still subject to barriers such as geography, legal, tariff, logistics and traffic. In spite of this, one of the selling points used extensively by companies e-tailing physical products is quick delivery and/or little or no added shipping or delivery charges. Claims abound for next-day delivery, same-day delivery, delivery within hours, even within the hour of making a purchase ...