I just read this article calling bull on the guy from France who says he got an Omnia 7 with Mango pre-installed as an exchange from Orange, as reported by a couple of other sites earlier today. They make some really good observations, and based on the evidence they stated I tend to believe that someone out there is just stirring the proverbial poop:
Blurry pictures aren't proof of Windows Phone 7.5 Mango roll out | MobileTechWorld
Blurry pictures aren't proof of Windows Phone 7.5 Mango roll out | MobileTechWorld