This document discusses how brands can influence shopping trips through mobile devices. It finds that 50% of Americans will have smartphones by January, and these are becoming the most important shopping partners. However, while most marketers plan to increase mobile marketing, few rate their efforts as successful. Research with heavy mobile shoppers found that retailer websites lack enough brand details, while brand sites provide more value. The document suggests brands partner with retailers to provide rich content like videos, reviews and coupons on mobile to enhance the shopping experience. Different categories require different mobile solutions based on shopper needs.