I agree in some respects. It's hard to leave Google and Facebook because their accounts are used to login to other sites and services. Also when you buy apps an

I agree in some respects. It's hard to leave Google and Facebook because their accounts are used to login to other sites and services. Also when you buy apps and switch mobile OS you don't have a right for a free copy of this app from a different store, i.e. not real ownership because your app is tethered to the store.