If wireless Internet access is such a hot technology, why is it such a dud business? I asked that question in Wired five years ago, and I still don't know the answer. Since then, eager-to-please Wi-Fi startups have gone the way of boutique ISP service. AT&T, once broken up by law for being an evil monopoly, has reassembled itself into the dominant telecom brand again — bad service and all. This morning, a press release out of Texas announced that AT&T will acquire privately held Wayport, which operates 10,000 hotspots at locations from McDonald's to the Four Seasons. For $275,000,000 in cash, AT&T will now double its number of Wi-Fi hotspots. I side with the Wall Street Journal's snap analysis: Maybe this will make up in part for all those customers canceling their AT&T home phones.