The Google Mobile Blog announced that callers to Goog 411 can now get information on the nearest intersection to a desired business location:

If you're out and about, you can call GOOG-411 and get local information about businesses. Now we've made it even easier to orient yourself without a map in front of you: call GOOG-411, ask for 'details', and in addition to the address and phone number of the business, we'll also point you to the nearest street intersection or adjacent streets.

This is a helpful addition to the service. Now Google needs to add the ability to request information by neighborhood and not just city (e.g., "cafes Tribeca, New York). 

I don't have data on whether Goog 411 and related services from competitors are more popular with feature phone users or whether they're equally used by smartphone owners. However, in our most recent consumer/mobile user survey we found that only 20% of respondents said they called 411 on their handsets. Interestingly smartphone owners were more likely to call 411 on their handsets. They may be less concerned about cost, which is a factor cited for not calling.