But what are the sales over the same period to end-users? Minus the donated phones and provided to its employees. Let’s assume that figure my personal assessment, that there were no official investigations and persecutions of the staff Microsoft. So, Fasten. By my estimate retail sales totaled 674,000 units. (Mobile Review, note: translated from Russian to English)
Seeing that this news is from an analyst one should always take information like this with a grain of salt (as truthfully no one really knows how many phones were sold outside of Microsoft).
However Microsoft could help clear up the confusion if they would simply release their activation numbers to the public (a method which Apple and Google both use to measure OS popularity).
Hopefully the company will consider releasing some hard numbers in the future, as the last thing Microsoft needs is shadowy rumors dragging the image of Windows Phone 7 down (which could hurt their image amongst developers).