Stephen Wunker is an entrepreneur and a widely published strategy consultant who has created successful ventures for his own companies and clients across six continents. He has led teams that developed some of the world s first mobile Internet devices, mobile commerce businesses, and mobile marketing campaigns. After earning degrees from Princeton, Columbia, and Harvard Business School, he became a long time colleague of Harvard professor Clayton Christensen in building a consulting practice based on Christensen s research on disruptive innovation. Wunker now leads New Markets Advisors, a firm...