Wander through any airport, office building, or shopping mall and you will pass dozens of fellow business people with cell phones glued to their ears. Look into any gate area or airport lounge, and you can t miss the road warriors with laptops propped open on their briefcase or on bent knee. Many of these road warriors have a data transfer ongoing using some form of wireless connection. Many will have an internal modem; others will be using an external cell phone plugged into their laptop modem card. More people yet will have a personal digital assistant (PDA) (like a Palm) connected to some form of wireless network. Finally, those WAP-enabled cell phones will be logged onto e-mail or browsing a special Web site. After takeoff, the buzz of the familiar Windows jingle occurs as these businesspeople resume computing for the rest of the flight (that excludes the people who play games).

Increasingly, we live in a world requiring a non-stop communication and computing environment. Laptops and subnotebooks are the norm in corporate America. These were once considered the status symbol of the geek. Now the wireless modem and full access to e-mail on-the-fly are the services to die for.

No wonder entrepreneurs around the world are welcoming the convergence of cellular communications and computer technologies creating wireless network computing. How often we have seen people linking (networking) their PCs together in a plane with the Infrared port (IrDa) on their laptop so...