My gosh, dayglored, there are more than crickets out there!
My own position has always been that WinPhone was a good stab at it, and the Win8/10 UI actually worked well on a phone/tablet device. (IMO it sucked on a desktop or laptop without touchscreen, though.)
It just couldn't compete successfully with the iPhone, and then the Android steamrollered everybody's sales figures -- although Apple kept all the profits. :-)
And we can all have a laugh at this fellow's expense, as Steve Ballmer Laughs At The iPhone.