Google threw a new product called Goog-411 into Google Labs today - a free telephone based information service that could replace toll 411 calls. About 2.6 billion 411 calls are made in the U.S. each year, and it is a $7 billion/year market.
Goog-411 can be accessed by dialing 1-800-GOOG-411.
For more information: http://labs.google.com/goog411/index.html