In today's world, networks are purpose-built. There's a voice network, cellular networks, data networks - and they tend to be separate. In the future, networks are going to converge. They'll transmit voice, data, video and fax, and they'll do it whether you're connected to a wire or wireless. And the requirement today for separate devices and separate networks will go away.
Networks are on the path to being pervasive.
Individuals will be connected to networks multiple times throughout their day, oftentimes not even knowing it, getting access to information as if the information were a pure utility. Today, when someone goes to a network connection it is typically a conscious act. Usually it happens through a line, some kind of tether or physical connection, in order to discretely get information. What we're talking about in the future is that, instead of people going to networks, the networks will be with you. You've mentioned wireless.