HONG KONG--(BUSINESS WIRE)--The GSMA today reported that nearly 40,0001 unique visitors from 100 countries and territories attended the 2015 GSMA Mobile World Congress Shanghai, held 15-17 July in Shanghai. The three-day conference and exhibition attracted executives from the industry’s largest and most influential mobile operators, device makers, equipment providers, software companies and Internet companies, as well as technology-savvy consumers. “This year’s Mobile World Congress Shanghai sh