Google Maps are now available as downloads for your web-enabled cell phones.  Although the map service is free, your cell phone must have web access, which is typically an additional charge on your cellular phone service.  The Google mobile phone map features include:

1. Detailed Directions
2. Integrated Local Search Results
3. Movable and Interactive Map Displays
4. Google’s Famous Satellite Imagery

You can read the specifications and access the Google Mobile Maps at Google Local For Mobile .