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Windows Phone version history - Wikipedia
Windows Phone 7.5 Mango review - Engadget
Windows Phone 7.5 ‘Mango’ release details and updated review
Windows Phone 7.5 Mango review: Up to speed - CNET
Windows Phone 7.5 (Mango) Review - Laptop Mag
Windows Phone Mango (Official Version) - YouTube
Windows Phone 7 'Mango' Hands On | PCWorld
Windows Phone 7.5 “Mango” Review: Getting Closer Now
Windows Phone 7.5 Mango Overview - YouTube
Windows Phone “Mango” – Released to Manufacturing