When Apple introduced the iPod in 2001, nobody realized the media player would revolutionize the music industry. The iPhone in 2007 wasn't expected to be the world changer it's become. And the "magical" iPad in 2010 was also met with skepticism and concerns over who would buy it. But all three did something unique that made them attractive to buyers. The iPod put thousands of songs in the palm of your hand, and let people buy songs for less than a dollar through online music stores. The iPhone gave people true Internet access from a mobile device for the first time. And the iPad created a sort of second-screen consumption device, allowing you to surf the Web while watching TV.