The Census Bureau will conduct field testing for the 2010 census in Colquitt, Thomas and Tift counties in Georgia, Lake County in Illinois and a portion of northwestern Queens County in New York. A major innovation that will be studied in 2004 is equipping field interviewers with hand-held computing devices to collect questionnaire data, navigate to assignments and update the Bureau's Master Address File. The devices also will include global positioning system (GPS) technology that can improve the process of assigning addresses to their correct geographic location. In addition to studying new technologies, the 2004 census test will examine a variety of methodological and operational improvements. http://www.census.gov/Press-Release/www/2002/cb02cn172.html