In his Personal Technology column today, The Wall Street Journal’s Walt Mossberg outlines what he feels Intel-based Macs will mean for the average consumer. Mossberg says that providing Apple executes the changeover properly, it will have little or no affect on the typical Mac user. “In the short run, however, the chip changeover should make little difference to average consumers,” he says. “For all but the techiest techies, changing the processor in these machines will be a nonevent, sort of like changing the engine in next year’s Lexus cars. As long as the new engine is at least as fast and smooth as its predecessor, few drivers would notice or care.”