Looking for one more excuse to stay inside and avoid that sweltering Las Vegas heat this summer? Good news, gamblers -- Clearwire's CLEAR WiMAX service has officially gone live across 638 square miles in the greater Las Vegas area. By the books, that's serving right around 1.7 million residents, not including the influx of tourists from other WiMAX-equipped cities that will undoubtedly take advantage. To coincide with the launch, Samsung has also announced that its QWERTY-packin', DivX-friendly
