Google has been working on IPv6 for a while, one of the good reasons for Goolge was a better understanding of what IPv6 means for the Goolge business thanks to visonary Vint G. Cerf (known as father of the Internet).
Lorenzo and other Google fellows made IPv6 happens in Google and recently (in January 2010) YouTube is also available by IPv6. I have been listening to Lorenzo on Goole IPv6 seminar 2008 and listening last summer. He has lots of very good points easy to catch. Listen to Lorenzo and you will understand why I selected this video
At IETF meeting last November, Lorenzo Colitti and Erik Kline of Google received the initial Itojun serivice award (read more here)