Goog 411 is a free, automated voice service to lookup phone numbers. (Damn the phone companies for charging us $1.50 for each 411 call.) Did I mention that Goog 411 was free?

Separately, if you are not yet using Google SMS, you should, if you want to know just about anything while you are out with only your phone. The sample queries from Google's SMS page include:

Category: Example
Local Listings: sushi 94040
Weather: weather NYC
Flight updates: LH454 or AA 2111
Airline information: United Airlines
Sports: lakers
Movies: the departed 94110
Stock Quotes: tgt
Glossary: define zenith
Zip Code: 72202
Translation: translate hello in french
Driving Directions: pasadena CA to 94043
Web Snippets: g hubble telescope
Q&A: abraham lincoln birthday
Area Code: 650
Froogle: price ipod player 40gb
Calculator: 1 US pint in liters
Currency Conversion: 8 usd in yen
Help: local ¶6:47 AM; digg