And, of course, I'm reminded again of Douglas Engelbart's 1968 "Mother of all Demos", in which he demonstrated the mouse, the GUI, instant messaging, networked gaming, and basically every other important development of the following 50 years.
It took 5 years for Xerox to refine and miniturize Engelbart's ideas to the point that they thought they could market them, and another 10 years before Apple refined and further miniturizaed the same ideas, and brought us the Mac.
Nothing is ever new.