Google now views WP as a potential threat to Android.

"From Google’s point-of-view, this must elevate Microsoft from an “also-ran” to a potential competitive threat with the resources and know-how to kick-start momentum and mount a campaign to reel in the second place player." - Flurry Analytics

http://blog.flurry.com/bid/86277/Microsoft-May-Be-Closer-Than-It-Appears-in-Android-s-Rearview-Mirror

http://wmpoweruser.com/flurry-analytics-windows-phone-app-growth-demolish-blackberry-closing-in-on-android/

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via blog.flurry.com