I tried Google's 411 service yesterday, and was mighty impressed. Just dialled 1-800-GOOG-411 (1-800-466-4411), and I was connected to the business I wanted to talk to in around a minute. The system understood my responses the first time, every time! It was my best encounter to date with voice recognition software.
My past experiences with voice recognition response systems have sucked a lot. I have been much frustrated, yelling the same thing over and over into the phone before giving up with disgust. So, it was a pleasant change to use Google's system. And the fact that I don't have to pay for the 411 service (directory assistance number in the US & Canada, for those of you who don't know what that is) ever again, makes it even sweeter!
Normally, the 411 service costs $1.28 over a landline and $1.57 over the cellphone. And, I read today that 411 is a $8 billion market in the US! Now, Google is offering this service for FREE (regular phone call costs apply, of course).
This service is highly recommended! Be warned though, Google says this service is still in the experimental stage and may not always be available.