This document discusses mobile marketing strategies in the retail industry. It provides an overview of Waterfall, a mobile marketing company, and their 3.0 platform. It then discusses trends in digital marketing spending and mobile coupon adoption. Several case studies of mobile marketing campaigns for retailers are presented, highlighting tactics like QR codes, mobile apps, and SMS. Opportunities for integrating email and SMS are discussed. Key takeaways emphasize using cross-channel communication for ongoing engagement, optimizing incentives to drive interaction, and aligning mobile with overall branding.