FT.com / Technology - Jobs sees decline in Windows popularity
He compared the PC with trucks, saying that the vehicles were pervasive when most people lived on farms, but faded in importance as most of the population moved to cities and suburbs. Some people still want trucks, and a fraction will still want PCs
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Meanwhile, Dan’l Lewin, the Microsoft executive who manages relations with Silicon Valley allies, agreed that many more types of hardware would come into use.

But he noted that a more diverse environment did not mean Microsoft would earn any less money than to date.

Following on Mr Jobs’ transportation analogy, he said: “There are more trucks than there ever were.”