Does anyone know if MKReverseGeocoder can be used in commercial apps/paid apps? The Google Maps Terms of Service are not very clear on that (to me).
According to the Apple documentation:
The Google terms of service require that the reverse geocoding service be used in conjunction with a Google map; take this into account when designing your application's user interface.
So as long as you are using a MKMapView to display the results of the reverse GeoCode request, you are fine.