All of the fighting has resulted in multiple casualties. BlackBerry couldn't keep up the pace and was eventually chopped off at the knees. Microsoft has yet to gain enough developer volume to be a real threat and will eventually reinvent itself as a new company under new leadership. Third-party app stores are distributed and nimble but really amount to nothing more than splinter groups using guerrilla tactics against the major nation states. They just can't compete in the long term.
In the United States, Google Play and Apple iTunes have become the two superpowers in the mobile app war. With exceptional mobile application uptake, these two players have come to dominate the consumer mobile space. Phones don't sell phones. . .applications sell phones, and these two players have won.