Aug. 8, 2012 at 12:27 PM ET
Research firm IDC says Google's Android operating system has extended its dominance in the smartphone market largely because of the success of Samsung's line of phones that run the software.
IDC says Samsung and other phone makers shipped nearly 105 million Android smartphones in the second quarter. Android had 68 percent of the worldwide market, up from 47 percent a year earlier.
The gains come largely at the expense of BlackBerry phones made by Research in Motion and Symbian phones used mostly by Nokia, which is shifting to use of the Windows OS in its devices. Each saw its market share drop below 5 percent.
The market share for Apple's iPhone fell slightly to 17 percent, but the company shipped more units than a year ago. Apple is the No. 2 smartphone maker, behind Samsung.