Gadget Lab: At this year's Macworld | iWorld event, iOS apps took center stage -- which wasn't hard for a trade show of ever-diminishing relevance. Apple no longer supports the show with the grand spectacle of an iDevice product reveal, and the event isn't even called "Expo" anymore. The show's tagline is now "The Ultimate iFanEvent," and last week's gathering felt more like a fantasy con than a buzzing hive of product announcements and demos. (Apple, Culture, Gadgets, Hi-tech, Industry, iOS, Photo, Services, Web)