On 11 February 2011, Nokia announced a "strategic partnership" with Microsoft, under which it would adopt Windows Phone 7 as its primary operating system on smartphones, and integrate its services and platforms with its own, including Bing as search engine, and integration of Nokia Maps data into Bing Maps. Elop stated that Nokia chose not to use Android because of an apparent inability to "differentiate" its offerings, with critics also noting that his past ties to Microsoft may have also influenced the decision. Although the MeeGo "Harmattan"-based N9 was met with a highly positive reception in 2011, Nokia had already decided to end development on MeeGo and solely focus on its Microsoft partnership, although the CEO said that the N9's "innovations" will live on in the future, which eventually made their way on the Asha platform in 2013. After the announcement of the Microsoft partnership, Nokia's market share deteriorated; this was due to demand for Symbian dropping when consumers realized Nokia's focus and attention would be elsewhere.