What exactly is your definition of &quot;mobile&quot;? I usually find it helpful when an author sets up a definition of key terms at the outset of an argument.<p>&gt; When we say &#x27;mobile&#x27; we don&#x27;t mean mobile, just as when we said &#x27;PCs&#x27; we didn&#x27;t mean ‘personal’. ‘Mobile’ isn&#x27;t about the screen size or keyboard or location or use. Rather, the ecosystem of ARM, iOS and Android, with 10x the scale of ‘Wintel’, will become the new centre of gravity throughout computing. This means that ‘mobile’ devices will take over more and more of what we use ‘PCs’ for, gaining larger screens and keyboards, sometimes, and more and more powerful software, all driven by the irresistible force of a much larger ecosystem, which will suck in all of the investment and innovation.<p>So if I&#x27;m reading this correctly, &quot;mobile&quot; means devices running on simpler hardware and software than traditional desktops or laptops, but running increasingly powerful applications? Regardless of their size and mobility?<p>And the scale in terms of number of devices in the market will drain investment and innovation away from larger, more powerful hardware and operating systems?<p>Thanks for writing this up. Just trying to make sure I understand your theses.