Following up on its April report breaking down mobile phone shipments by manufacturer for the first quarter of 2013, research firm IDC today issued a new report looking at shipments from an operating system perspective. The report unsurprisingly shows that Android and iOS continue to dominate the smartphone market with over 92% of shipments during the quarter, with Android's broad availability driving it to represent 75% of all shipments.Apple iOS marked its largest ever first quarter volume on the strength of its iPhone shipment volumes, yet the operating system posted a year-over-year decline in market share and lower year-over-year shipment growth than the overall market. Although demand remains strong worldwide, the iOS experience has remained largely the same since the first iPhone d
