This document discusses gesture recognition technology and its potential applications in retail. It begins by introducing gesture recognition and its use in remote and touch-based interfaces. It then explores applications in retail advertising, market research, and a concept called "Retail 2.0". Specific applications mentioned include using emotion recognition from facial expressions to observe customer behavior and internet user behavior. The document also notes challenges such as accuracy, precision, software recognition ability and high development costs. It raises questions about how long the "wow effect" of new gesture technologies will last and how to quantify the benefits against the challenges of high customization needs.