Google just announced that Googlemaps can be used in offline mode in Android devices.
Google Lat Long: Go offline with Google Maps for Android
Do you think something like this could be possible for PC as well using WebGMaps?
We'll need to investigate this, this will most likely be bound to a new version that will need a separate deploy.
Not sure if this will be available for Windows. We'll inform as soon as we know more about this.
Thanks for your quick reply.