Mobile marketing is increasingly important as more devices and people go online. By 2020 there will be 75 billion internet connected devices, most of which will be used for mobile marketing. Effective mobile strategies must be responsive, optimize for video and apps, reduce tap requirements, and leverage location-based targeting which has grown dramatically in use. However, mobile analytics like email open rates are less useful and marketers must focus on understanding customer behavior across channels like email, SMS, and apps to improve mobile experiences and drive sales.