Research firm Gartner has published its latest predictions for shipments of devices – PCs and laptops, tablets and smartphones. It thinks that across these categories, 2.4bn devices will ship in 2014, but the real story is its prediction that in 2015, shipments of tablets will overtake shipments of PCs for the first time. Specifically, Gartner sees 316.7m PCs (including desktops, laptops and ‘ultramobiles’) being shipped in 2015, compared to 321m tablets. Even so, Gartner sees the growth in tablets slowing down a little, as that market matures. “The next wave of adoption will be driven by lower price points rather than superior functionality,” as its research director Ranjit Atwal put it. The biggest device category by far, of course, is mobile phones: Gartner thinks that 1.86bn will ship in 2014, rising to 1.95bn in 2015. And when it adds together all these categories, 2015 will see Android running 1.37bn of new devices shipped, way ahead of Windows (373.7m) and Apple’s iOS / Mac OS (301.3m).