Today, the customer path to purchase is a complex web of interactions and experiences across digital and physical channels. Mobile is the indispensable common denominator that is guiding, informing and influencing the customer through their journey. For those retail brands that can successfully and seamlessly integrate mobile, the possibilities (and ROI) are tremendous. The effect of smartphones on in-store retail sales will increase to $689 billion (or 19% of total store sales) by 2016....