You have to be specific here. 1) How many apps will flat out refuse to run if Google Services are not present, as opposed to have reduced functionality? Having

You have to be specific here. 1) How many apps will flat out refuse to run if Google Services are not present, as opposed to have reduced functionality? Having a dependency on Google's Services library only means that the app will use it if it is available, not that the app will fail if it's not. 2) How many apps use more than the Location / Maps / In-app Purchases API, which are implemented in a compatible way by all of the other parties I mentioned?