Here are IDC's figures for worldwide smartphone unit sales and market share in the second quarter of 2012, by operating system.
Android (Google Inc.) — 104.8 million units, 68.1 percent share (46.9 percent a year earlier)
iOS (Apple Inc.'s iPhone) — 26.0 million units, 16.9 percent share (18.8 percent a year earlier)
BlackBerry (Research in Motion Ltd.) — 7.4 million units, 4.8 percent share (11.5 percent a year earlier)
Symbian (mostly used by Nokia Corp.) — 6.8 million units, 4.4 percent share (16.9 percent a year earlier)
Windows (Microsoft Corp.) — 5.4 million units, 3.5 percent share (2.3 percent a year earlier)
Linux — 3.5 million units, 2.3 percent share (3.0 percent a year earlier)
Others — 0.1 million units, 0.1 percent share (0.5 percent a year earlier)