The 3 Most-Important Things at Mobile World Congress

The Firefox OS mobile operating system launches in Barcelona Photograph by Josep Lago/AFP via Getty Images

Gadget fans walked away this week from Mobile World Congress in Barcelona, the annual geek fest for connected devices, grumbling about a glaring lack of breakthrough products. There were no successors to last year’s wide-screen, HD wonder Samsung Galaxy Note 10.1, nor did anybody dare push beyond the 41-megapixel barrier broken a year ago by Nokia’s PureView 808 camera phone. And with Apple a no-show (as usual) and Google suspiciously scarce at this year’s event, tablet news was decidedly understated.

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