Future Mobile OS war

as you know there are 3 different mobile os's available, and you can use what ever you want
actually this is a war who will win this war?

IOS thoughts - With its easy-to-use interface, amazing features, and rock-solid stability, iOS — Apple’s mobile operating system — is the foundation of iPhone. And even as other phones try to catch up, the technologies and features built into iOS 4 keep it years ahead of the competition.