Apple updates MacBook Air and 13- and 15-inch MacBook Pro models, adding USB 3.0; introduces a completely new 15-inch MacBook Pro design with Retina Display and SSD; and details Mountain Lion, iCloud and iOS 6 features, while dropping 17-inch MacBook Pros and avoiding any mention of new Mac Pro models but slipping in, unannounced, minor Mac Pro tweaks and a new AirPort Express.
