History: The iBook was perhaps the most anxiously awaited Apple computer ever. Aimed at the same consumer market as its big brother, the iMac, the iBook filled the 2x2 consumer/pro/desktop/portable matrix that Steve Jobs had first detailed more than a year earlier. Its specs closely resembled that of the iMac, with the same basic i/o options, and the same "closed system" concept. The most exciting new feature of the iBook was the inclusion of AirPort, a wireless networking system based on existing industry standards.