And they trashed themselves. Microsoft was late to the party, but Windows Phone 7 was genuinely innovative and good. Unfortunately, when WP7 started to get some traction, they reset the entire ecosystem with Windows Phone 8, which could not be installed on existing Windows Phone devices. And Windows Phone 8 applications could not be installed on Windows Phone 7.
That is still one of the most mind boggling decisions I've seen. You launch a new smartphone platform to compete with two rivals that already have a head start, and then you intentionally wipe away all your progress so you can start even further behind again. Any interest in it evaporated overnight
