It’s an art project and a history lesson! It’s GPS/Cellphone equipped cutouts of Silicon Valley pioneers hitchiking across the country!
To read more about this project and see the cutout GPS locations and travelogue go here :
http://www.ylem.org/Hitchhikers/
Sun Microsystems also got in on the action as HP didn’t seem to want to care for their namesakes :
http://www.theregister.co.uk/2006/08/17/sun_buys_hp/
Definately worth taking a look and reading about the guys who helped make alot of the technology we use today possible.