Smartphone development, it's fair to say, has been fairly stagnant over the last decade or so. Sure, the cameras get better, we've now got 5G, and occasionally a manufacturer might go rogue and move the charging port into an unusual place - but fundamentally, phones are pretty humdrum.
However there has been something of a quiet revolution bubbling away in the background. Some of the biggest names in the business (and some of the smallest, as a matter of fact) are ploughing a lot of money into fathoming a way to make a phone that folds in half.
Back in the days when phones were, well, just phones, this was a doddle. But these days smartphones are all screen, and the displays are complex and very delicate - as you'll know if you've ever been
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