Yes, the death of Windows phone was a tragedy for the mobile phone market; it had a fresh take on things, and could have stirred up healthy competition with the duopoly of iPhones and Android phones.

I never could understand why MS would not put heavy muscle behind it. Maybe they deep down knew hardware execution was not their strong suit. People think the software was the problem, but I think if MS really believed in the product, the software side was eminently solvable.