(Telecompaper) The worldwide tablet market, including both tablets and 2-in-1 devices, will increase by 19.4 percent in 2014, down from a growth rate of 51.6 percent in 2013, according to IDC. The 2014 forecast has been reduced by 3.6 percent from IDC's previous projection to 260.9 million units worldwide. The reduction in the short-term forecast is mainly due to slowing consumer purchases as hardware iterations slow and the installed base, mainly in mature markets, continues to grow.