AdDuplex, the largest cross-promotion network between Microsoft (NASDAQ:MSFT) Windows Phone and Windows 8 apps, recently released its worldwide monthly findings, showing Nokia (NYSE:NOK) pulling more than its weight for Windows Phone. In particular, nearly 75% of Windows Phone devices in the world are now made by Nokia. In this video, Motley Fool contributor Steve Heller discusses which company is bearing more risk and if there are any potential bright spots to the story.

Erin Miller has no position in any stocks mentioned. Fool contributor Steve Heller has no position in any stocks mentioned. The Motley Fool owns shares of Microsoft. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.