Worldwide shipments of tablets and 2-in-1 devices are forecast to reach 221.8 million units in 2015, a decline of 3.8 per cent from 2014, according to IDC. The new outlook follows two consecutive quarters of declining sales and represents a modest downward revision from the previous forecast of 234.5 million units and 2.1 per cent year-over-year growth in 2015. While IDC expects overall sales to decline in 2015, some segments of the product category are poised to experience strong growth. These include cellular-capable tablets and 2-in-1 devices, which still represent a small portion of the entire market but are expected to grow their share in 2015 and beyond. IDC forecasts that this segment will grow at a five-year compound annual growth rate (CAGR) of 5.6 per cent compared to Wi-Fi-only devices, which will experience a negative five-year CAGR of 0.4 per cent. Release