I had heard about these before but tried them both out today (and two others) - pretty cool for information on the go from you cellphone (or any phone) without hitting the web...
Best 411 services:
http://www.google.com/goog411/
Nearly as good 411 with other information services:
http://www.livesearch411.com/
Best 411 services:
http://www.google.com/goog411/
Nearly as good 411 with other information services:
http://www.livesearch411.com/