No surprise. Smartphones operating on the Android OS from Google (Nasdaq: GOOG), the No. 1 search engine and the iOS from Apple (Nasdaq: AAPL), the world's most valuable technology company, now power 85 percent of all new smartphones, IDC estimated.

A year ago, their combined share was only 65.7 percent.

In the second quarter, Android's market share surged 45 percent to 68 percent, while Apple's share declined 10 percent to 16.9 percent, IDC reported. Google's gain came as more vendors such as Samsung Electronics (Seoul: 005930) rolled out more smartphones to compete against Apple's iPhone 4S and older models.

Meanwhile, the share of BlackBerry developer Research in Motion (Nasdaq: RIMM) fell to only 4.8 percent from 11.5 percent a year ago and the Symbian share declined to only 4.4 percent  from 16.9 percent, mainly because Finland's Nokia (NYSE: NOK) abandoned it for the Windows Phone OS from Microsoft (Nasdaq: MSFT), the world's biggest software company.

Microsoft's share rose to 3.5 percent to 2.3 percent, IDC reported. Microsoft plans to roll out a new version of Windows next quarter.