The document discusses how permission-based marketing using mobile devices will transform consumer engagement. It notes that most consumers want mobile loyalty programs and value the engagement but have never been asked to join. Permission-based marketing allows companies to capture consumers' most important identifier, their phone number, and get permission to use it for targeted marketing. This is more effective than traditional mobile marketing which does not link the phone number to consumer data. The document provides tips on measuring the results of mobile marketing programs and growing an opt-in mobile database.