The Geospatial Revolution is an ongoing project through Penn State Public Broadcasting and other sources. The purpose of the project is to "expand public knowledge about the history, applications, related privacy and legal issues, and the potential future of location-based technologies." So far (only episode 1 has been released) it has been very interesting and informative to learn about these GPS receivers and the possibilities of what we could do in the future with this technology. There is a link to educational resources for 7-12th graders below.
Geospatial Revolution / Episode One from Penn State Public Broadcasting on Vimeo.