Got this gem from the TreoCentral forum and thought I would pass it along. Did you know that Google has a directory service that runs on SMS? It is awesome!! You can read more about it here: www.google.com/sms/
Basically, you send an SMS messge to 46645 (G-O-O-G-L), with the item you're searching for, and a location. You can search for businesses, weather, driving directions and many others.
For example, if I wanted Pizza joints in Jacksonville, FL, I would send (to 46645): pizza 32202. You can also use: pizza jacksonville fl. This search would return 1 or more SMS messages with all the pizza restaurants in and around that zip code. Pretty awesome, huh?
I've used it from time to time to find starbucks, customer locations, or other items I've been looking for. Hope this helps...