The history of mass-market computing has seen the focus shift successively from desktop PCs to laptops, to tablets and smartphones, with ever-smaller form factors quickly matching or surpassing early examples of their predecessors in terms of processing power (if not fitness for purpose for certain types of screen- or keyboard-dependent task).

That's why consumers and, increasingly, business users spend a lot of time considering the merits of different smartphone platforms, vendors and mobile operators. It's also a fast-moving market, which is why, not long into the smartphone era, corporate IT departments wer ...

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