YOu can appear on the map, when u select google and type google local sumbit or something, this then gives you a placing on the map with a Letter pointing out your address.
Howeever
1. People rarely use those results
2. People are more likely to use the organic listings#
3. You might be at position F and so the bottom of the top listings, which is rubbish unless your description and URL is very eye catching.
4. If you sumbit to g maps then it might negate your other work so that they are not listing you twice.
5. Local business listings is different from the googlemaps listing