From Wired News:
Today, more than 4,400 GPS-toting travelers have participated in the Degree Confluence Project, covering nearly all the easily accessible points in the United States and Western Europe, and putting a sizeable dent into other populated portions of the globe.
In recent months, hard-core trekkers have ventured to remote areas from Antarctica to the jungle of East Timor to Svalbard, an Arctic territory bordering on the Barents Sea.
In all, project coordinators estimate that about 3,000 confluence points — the intersection of whole-number latitude and longitude lines — have been visited, out of a total of 16,000 global confluence points located on land and meet the goal of the project. If one includes intersections of latitude and longitude lines at sea, about 64,000 confluences exist worldwide.