The prospect that MS Windows Phone will beat Apple's iPhone in year 2015 has emerged. According to industry research firm IHS iSuppli, Windows Phone will increase its market share of smartphone operating system up to 16.7 % in 2015. Though Windows Phone has only 1.9% market share in year 2011, it will increase its market share gradually to 9% in 2012, 15.3% in 2013, 16.1% in 2014 and 16.7% in 2015.

In support of this prediction, IHS iSuppli has given strong credit to Nokia Phone which has partnered with Microsoft. IHS expects that Nokia, especially Lumia 900 will dominate half of Windows Phone sales in 2012.

One of the hottest new products unveiled at the Consumer Electronics Show was the Lumia 900, a Windows Phone-based smartphone sporting a flashy set of features that makes it competitive with the best alternatives offered by the Android camp, said Wayne Lam, senior analyst for wireless communications at IHS. This hot product represents Nokia's first step to reclaim its market share. Combined with Nokia's efforts to drive the development of the Windows Phone ecosystem, the Lumia 900 and its successors will help Microsoft to reclaim its No. 2 ranking in smartphone operating system market share in 2015.

Because of Nokia's support, apps developers will eagerly shore up the Windows platform. This will cause other makers of Windows Phone devices, such as Samsung and HTC, to offer more products supporting the OS - further expanding the market, Lam said.

Meanwhile, Android is anticipated to dominate the smartphone operating system market share by 2015. Android's market share is currently 47.4%. It is expected to leap to 53.9% and 55.9 by 2012 and 2013 respectively. In 2014, it is expected to touch 57.8% and ultimately it will grab 58.1% market share by 2015.

In comparison, iOS market share, which is currently at 18%, will remain steady in 2012 but is predicted to dip in 2013 to 17.3% and 16.8% in 2014 before hitting 16.6% in 2015.

It means Windows Phone and iPhone OSes will be competing neck to neck for the second spot in 2015. However, this is just a prediction and Windows Phone's success depends on how the OS fares in the real market and appeals to the customers.

MUST READ: Megaupload Busted - Can Kim Dotcom Win the Copyright Fight?