If we look at the progress made by Homo sapiens over the past 1000 years, the past 100 years have had more impact on us than the rest of the centuries combined. The breathtaking pace of advances in various fields of technology has transformed the human landscape. As we move into the twentyfirst century, the impact of wireless technologies and globalization will have a profound effect on the way we interact culturally, socially and intellectually across geopolitical boundaries.

The new millennium will continue the feverish pace of globalization, and bring its denizens closer to each other than ever before. One of the critical factors at the heart of this revolution is mobility; both wireless voice and data technologies will continue to enhance our daily lives and help transform the business and consumer market place over the course of next several decades. The global community continues to embrace wireless applications and services and globalization, irrespective of region, gender, culture, or age. This trend is not limited to human beings; even machines are exchanging information wirelessly.

The recent explosive development of wireless technology has contributed not only to the acceleration of globalization of the world economy, but has also changed our lifestyles. Conversely, the rapid globalization of the world has also made a great impact on the wireless industry. For wireless engineers like Chetan Sharma and Yasuhisa Nakamura, the present authors, physical borders mean nothing. Everyday, a new wireless device is being introduced and a new service starts somewhere in the world.