Windows Phone OS will become second popular only because of Nokia

A new forecast made by Gartner echoed similar conclusions of IDC saying that Android will be a dominant operating system with Windows Phone 7 to come on the second place by 2015.

Further the latest Gartner forecast shows that Apple’s iPhone OS will decline to the third place behind Windows Phone while RIM’s BlackBerry will come fourth that year.

When IDC first made its forecast Android’s dominance was accepted as granted because it was in late 2010 when Google’s mobile OS proved its success. Meantime, experts were startled with the forecast for Windows Phone because up to present time Microsoft’s OS has proved little success when sold separately from alliance with Nokia.

Gartner says that Android will hold nearly half of the smartphone market in 2012, then remain above 48% through 2015 when Gartner projects that 1.1 billion smartphones will be sold worldwide.

In 2011, Android will get nearly 39% of the smartphone market, which will total more than 467 million smartphones.

"Gartner has revised its forecast of Windows Phone's market share upward, solely by virtue of Microsoft's alliance with Nokia," Gartner said in a statement.

Gartner analyst Roberta Cozza explained the Windows Phone growth, noting that Nokia will be able to sell Windows Phones at lower prices than many smartphones sold today and to sell them globally through an extensive sales channel.