Watch the kids. They'll show you the next big trend in technology. In Paris, head for the Champs Elysees after dark. Up and down the boulevard, you'll see kids with cell phones in their hands—not at their ears—so they can type messages. These terse messages, limited to just 160 characters, have been flitting from cell phone to cell phone since the early 1990s. If that was the Stone Age of wireless-phone technology, the past 12 months have ushered in the renaissance. Worldwide, transmissions of wireless blurbs surged from 3 billion messages a month last January to 16 billion by December.
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