Google Play services: How to handle devices that do not have Google Play?
Google Play services is an Android library whose goal is to provide: OAuth 2.0 authentication Google+ sign-in Google+ +1 button various other goodies If I were to use it (for instance because I want Google+ sign-in), what would happen to users whose device does not have Google Play? (Nook, Cyanogenmod, China Mobile, old devices, maybe Huawei? , etc) QUESTION: Will my app become incompatible with such devices? Will it be displayed as compatible but then crash, or not work? Is there a best practice to keep this in mind when using Google Play services? GooglePlayServicesUtil