Reverse geocoding (country) from geofield with coordinates is there a quick way to do a reverse geocoding from a geofield field containing geographical coordinates?

I just need the country name, so I wonder if there is some service with more allowance than the Google API, or even a hosted solution with country coordinates and a drupal module quering it???? (as it seems to be a Drupal module for everything)
this is a question that I asked to myself some time ago. I suggest to start from the geocoder module.
This module "translate" an address to a lat./lon. parameter that could be displayed in a map.
Reversing this process - if I understand correctly your question - seems to be a WIP: actually, no out-of-the-box solution.
But you can check and try the suggestions in this discussion.