Abstract I. Introduction II. Service Architecture based on Network Virtualization III. Virtualization Techniques for Wireless Networks 3.1. Basic Techniques 3.2. Open Network API (Application-Programming Interface) 3.3 Deployment Scenarios 3.4 Related Research IV. Paradigm Shift in the Future Mobile Ecosystem 4.1. Changes in Mobile Internet Market 4.2. Strategies and Vision of Network Operators 4.3 New Value Chain and Business Model in Future Mobile Ecosystem V. Conclusions References Biographies