He's pretty harsh on unnamed governments who complain about unblurred faces, and got more than a bit of engineer's arrogance, which is why, I guess, he works for Google, but Michael Jones's talk, "The Meaning of Maps,"at O'Reilly's Where conference last week is pretty great.
Maps are not just place, they're culture. Also, you get to see the Google Trike in action around the 13:00 mark.