Mobile communications on an aircraft are more than air-to-ground interactions that take place in the cockpit. Today, passengers can use their mobile devices at cruising altitude in an aircraft to call, text and email colleagues, friends and family, just as if they were on the ground. In the future, real-time connectivity will offer passengers the opportunity to plan their travels en-route, and give airlines a way to improve their customer service while increasing ancillary revenues and reducing costs.