10. The method of claim 1 , wherein said encoded version of said addresses' lower significant digit latitude and longitude values are further generated by the steps of: obtaining a geographic address; determining the latitude and longitude of said geographic address; obtaining a granularity value; obtaining a precision value; using said granularity value to truncate the higher significant digits of the latitude and longitude of said geographic address, producing a remainder latitude and longitude of said geographic address; using said precision value to truncate or round-off the least significant digits of said remainder latitude and longitude of said geographic address, producing lower significant digits of the latitude and longitude of said geographic address; and encoding said lower significant digits of the latitude and longitude of said geographic address.
10. The method of claim 1 , wherein said encoded version of said addresses' lower significant digit latitude and longitude values are further generated by the steps of: obtaining a geographic address; determining the latitude and longitude of said geographic address; obtaining a granularity value; obtaining a precision value; using said granularity value to truncate the higher significant digits of the latitude and longitude of said geographic address, producing a remainder latitude and longitude of said geographic address; using said precision value to truncate or round-off the least significant digits of said remainder latitude and longitude of said geographic address, producing lower significant digits of the latitude and longitude of said geographic address; and encoding said lower significant digits of the latitude and longitude of said geographic address. 14. The method of claim 10 , further providing a scaled offset value by determining if the distance between the higher significant digits of the latitude and longitude of said context hint and said geographic address is greater than the distance represented by half of said granularity value; and if so further generating a scaled offset value that, when applied to the higher significant digits of the latitude and longitude of said context hint, produces an adjusted context hint with a distance between the adjusted context hint and the geographic address that is less than the distance represented by half of said granularity value.