You, however, do not address either what makes you think that or where would Apple be in you scenario. As thing are today, there is nothing to suggest that App

You, however, do not address either what makes you think that or where would Apple be in you scenario. As thing are today, there is nothing to suggest that Apple are losing steam or that Android is gaining such at a higher rate. It is true in probably every respect of the two platforms, but it is especially true when it comes to the respective app stores. So in that case my prognosmification would be that, even if you're right and Android is where the iPhone is today in a few years, Apple's platform would have grown too by then, maybe even proportionally to Android. Which does not mean one should not develop applications for Android or that they shouldn't "plan for it". But expecting that there is explosive growth just around the corner is absolutely unrealistic.