This. From an app developer's perspective, there's no contest currently.

And mobile web usage isn't looking much better for Android: http://www.businessinsider.com/apple-android-mobile-web-usag...

No doubt more and more phones in pockets will be running Android. But how many will really be used like smart phones?

> From an app developer's perspective, there's no contest currently.

To be more exact, this is the perspective of a developer looking to monetize their application by selling directly to users.

Of course on Android it is easy to say 'show me the desktop version' of a site which uses a different UA which would show up as a desktop browser and not an Android phone.