The Google map component (com.google.android.gms.maps.GoogleMap) allows one to render custom tiles (OpenStreetMap or other). These tiles can be on the device and available o
As of 3.0.27 of Google Play Services APK it is fixed and the server is required to be contacted just once. You will see error in the logcat every time, but it will work.
More info here: http://code.google.com/p/gmaps-api-issues/issues/detail?id=4817
and here: http://code.google.com/p/gmaps-api-issues/issues/detail?id=5017