Google Maps mobile 3.2
Comes with may new options such as layers, which you can add on and take off. It is perfect if you were to plan a trip that involves walking buss rides and as Google says bike rides. If you go and visit a given city you can pull out a layer that will extract from Wikipedia all the interesting land marks and point them out ot you. Also the business index is a bit improved, not that I ever had a problem with the old one! Now Google Maps Mobile is only available for Nokia and Windows Mobile Smartphones, but soon it will be available and for others.

for downlaods visit:

http://m.google.com/maps

from your phone!