iSuppli is the latest analyst to predict that Microsoft’s Windows Phone smartphone OS will be a success. The company predicts that by 2015, Windows Phone will have overtaken Apple’s iOS for global market share, based mainly on its partnership with Nokia. The company claims that Windows Phone took a mere 1.9% market share in 2011, but sees this rising to 9% this year, and 16.7% by 2015, when it will be behind Google’s Android (58.1%), but ahead of iOS (16.6%). iSuppli doesn’t even bother to break RIM’s BlackBerry out of its ‘Others’ category, indicating woeful expectations for that OS in the coming years. “Because of Nokia’s support, apps developers will eagerly shore up the Windows platform,” predicts senior analyst Wayne Lam.