Research firm Wireless Intelligence released a report today stating that there are now 1.6 billion 3G/4G wireless broadband subscriptions in the world – 733 million in Asia, 426 million in North and South America, and 358 million in Europe. The company considers this bucket to include DMA EV-DO, HSPA, WiMAX, and LTE protocols. The subscriptions are issued by 580 operators in 186 countries. [Source: Wireless Intelligence]