At first glance, things could not be going worse for Microsoft. Its long-dreaded nightmare scenario is playing out. The PC industry as we've known it is collapsing. PC sales fell 14% in the first quarter, according to IDC, the worst ever drop in history. Microsoft's new Windows 8 operating system is accelerating the collapse, says IDC. The new tile-interface is scaring consumers. Microsoft is scrambling to fix Windows 8 to address these concerns. And even if Microsoft fixes Windows 8, it could be too late. Its biggest rivals — Apple and Google — have taken complete control of the next...