There's no big mystery here. If Google didn't build Android, the giants who control the platform could charge extortionate fees to let Google play. Same reaso

There's no big mystery here. If Google didn't build Android, the giants who control the platform could charge extortionate fees to let Google play. Same reason that Google buys spectrum, builds a browser, creates a TV set-top box, trades electricity wholesale, and builds municipal Wi-Fi and fiber networks. Google must do these things or other corporate behemoths will control their destiny.