Read original post at IDC
Despite beating Wall Street expectations in terms of shipment volumes, Apple's share in the worldwide smartphone operating system market posted a year-over-year decline during the second quarter of 2013 (2Q13). Meanwhile, Android and Windows Phone both managed slight increases during the same period. According to the International Data Corporation (IDC) Worldwide Quarterly Mobile Phone Tracker, vendors shipped a total of 236.4 million smartphones in 2Q13, up 51.3% from the 156.2 million units shipped in 2Q12. Second quarter shipments grew 9.3% when compared to the 216.3 million units shipped in 1Q13.