Yes, this is a very useful feature for those who don't have a BB. Since we're all BB users, I think the Berry 411 app is a much better way to go. It's an app that allows you to enter your search criteria and it passes the criteria to the web browser; which then retrieves the results from Google Local. This is actually faster than manually navigating to Google's site and executing the search.
Since I've installed Berry 411, I haven't used Google SMS. Besides, I hate having to remember the Google SMS syntax... http://www.thebogles.com/Berry411.htm