Ever wonder how John Gruber got to be as popular a pundit as he's become? His Sept. 21st piece about Apple's fall event, which has in previous years been about music, their iTunes Store and software, and iPods, is a case in point. It's a combination of reasonably good command of the language, plain old common sense, and a light touch of humor, in addition to the occasional tip from an inside source. He's not afraid to admit when he's posting sheer speculation and has a pretty good batting average, but mainly he lays out his reasoning for anyone to inspect who cares to go to the trouble. Agree with him or not, you have to respect his approach.