Apple today launched a new promotion for U.S. customers, providing free next day shipping on all of its iPhone models. While Apple typically provides free shipping for all orders over $50, the promotion also includes the iPhone 4, which is free with a two year contract. The shipping promotion comes shortly after Apple released a new "Why You'll Love an iPhone" advertising campaign via email and the web and a secondary email advertisement that highlighted Apple’s 9th consecutive J.D. Power Smartphone Satisfaction Rankings win. Apple's advertising push follows the introduction of Sam
