<p>Far from what tradition might indicate, the wireless Internet isn't turning out to be one of those tech breakthroughs that arrives accompanied by a Microsoft-size marketing campaign and eight-foot-high displays in consumer-electronics stores. Instead, it's a grassroots trend that has moved from research labs, to techie circles, to hobbyists -- and that now, after five years -- is about to reach the general public. Anyone who didn't know broadband (meaning, fast) wireless Internet access is here -- and that it works -- soon will.</p>