I shot five videos. This is the first one. This team didn't invent GPS, but they made the GPS inside your cell phone (probably -- all the cell phones I use have one of their chips inside). This is the lab where it all happens and in this video they show you how GPS works and how they figured out how to make it work inside buildings. - Robert Scoble

That's Frank Van Diggelen, technical director and "Chief Navigation Officer" in the wireless connectivity/GPS group at Broadcom. I was visiting its offices in Santa Clara, California, USA. - Robert Scoble

Other pieces of this story: 1. Picture of chip next to picture of first prototype: http://friendfeed.com/e... - Robert Scoble

2. Video look at size of chips. http://friendfeed.com/e... - Robert Scoble

3. Look at plot of chip on wall and discussion of how faint the signals are that your cell phone's GPS measures: http://friendfeed.com/e... - Robert Scoble

4. Discussion of data centers around the world that assist GPS in knowing its location, even when inside buildings: http://friendfeed.com/e... - Robert Scoble

5. A look at counters that keep track of network assistance data. http://friendfeed.com/e... - Robert Scoble