Fri 15 Jun 2012 in Atlanta:
In a veranda in a well off neighborhood in Marietta.
The Veranda from Google Maps... 
2.49 feet to go. Close enough.
Time of the meetup.
Date of the meetup.
11 feet accuracy. I'm in the 10 meter requirement.
Me with a Stupid Grin™ standing on the Geohash spot.
The Veranda where the Geohash spot is.