The main goal of this application is to allow it's users to view maps, locate themselves, follow KML or GPX formatted tracks and getting directions from place to place.
new: Directions also have tile cache.
Source code and complete infos available at : http://code.google.com/p/mapinmypocket/
A version with all map styles (Google, Yahoo, VirtualEarth) is also available there.
If you find a bug please post an issue, this will help me getting this application better and better.