The theme of Interop Tokyo 2005 is “The Internet Technology for the Ubiquitous World”. An environment that enables anyone to connect to the Internet with any terminal anywhere and anytime, or an Internet environment in which “5W1H” does not matter, is gradually coming true. As you know, “ubiquitous” is a word that explains a concept, and there are no specific rules or guidelines. Integrating numerous technologies that transcends fields and industries is what realizes ubiquitous networks. Without doubt we can say one thing: Internet technology supports ubiquitous networks. In other words, each and every technology introduced at Interop over the past eleven years creates the foundation for ubiquitous networks. That is the ubiquitous environment that visitors experience in their daily lives and in business settings. And the technologies that support it converge at Interop Tokyo 2005. What can we do in the ubiquitous environment? What lies beyond the ubiquitous environment? Please come and see for yourself.