http://www.engadget.com/2015/06/25/nadella-mission-statement/
Nadella reiterated Microsoft's need to focus on the cloud and mobile, and he was quick to point out that the concept of "mobile" also refers to creating mobile experiences for customers (likely across multiple devices), all powered by the cloud. Windows Phone hasn't been much of a success for Microsoft so far, but with Windows 10 it'll have a platform that finally unites its mobile and desktop experiences. That may finally help Microsoft sell more phones, though that's probably less of a priority now that the company is also supporting iOS and Android with flagship software like Office.
Nadella reiterated Microsoft's need to focus on the cloud and mobile, and he was quick to point out that the concept of "mobile" also refers to creating mobile experiences for customers (likely across multiple devices), all powered by the cloud. Windows Phone hasn't been much of a success for Microsoft so far, but with Windows 10 it'll have a platform that finally unites its mobile and desktop experiences. That may finally help Microsoft sell more phones, though that's probably less of a priority now that the company is also supporting iOS and Android with flagship software like Office.