I have a cell phone with which I can talk to almost anybody, from almost anywhere. It has a 1.3-megapixel camera, with which I can take stills or very short videos and post them on the Web, again from just about anywhere. Apple just introduced a new iPod. It enables users not only to carry around thousands of songs and still photos, but also downloaded video; people can watch last night's episode of "Desperate Housewives" (or their own homemade videos, for that matter) while they're on the train or waiting in the doctor's office (OK, make that two episdoes).