Microsoft's departing executive Ray Ozzie has posted an essay sending warning signs to Microsoft that its core Office and Windows businesses would eventually come to an end. He asked coworkers to get ready for a "'post-PC' world" but cautioned that the platform was getting too complex both for users and developers and would likely lead to a backlash towards simpler, "appliance-like" devices. He also acknowledged that Microsoft had wasted its opportunities in mobile and had let Apple, Facebook, Google and others get a clear lead.
