In the year ahead, a long-heralded revolution in wireless communications will finally come to pass. It may throw handset makers and service providers into turmoil, but over time it should be great for consumers. Fast, wireless data will become more widely available, the choice of data devices and mobile handsets will expand, and service just might get cheaper. The biggest driver of change is an event slated for February, 2009. It is, of all things, the shutdown of analog television broadcasting. The conversion to digital TV will free up space now occupied by UHF channels 52 to 69. A chunk...