Welcome to The Wireless Revolution! Cell phones, smartphones, tablets, wireless-enabled personal computers have morphed into portable computing platforms that let you perform some of the computing tasks you used to do at your desk. We introduced smartphones in our discussions of the mobile digital platform in Chapter 1 and 4. Smartphones such as the iPhone, Android phones, and BlackBerry combine the functionality of a cell phone with that of a mobile laptop computer with Wi-Fi capability. This makes it possible to combine music, video, Internet access, and telephone service in one device. Smartphones are the fastest growing wireless devices with respect to Internet access. A large part of the future Internet will be mobile, access-anywhere broadband service for the delivery of video, music, and Web search.