Hi there

I currently use TTQV Navigation software on a CarPC for offroad
navigation with raster maps.
http://www.ttqv.com/navigation_software.html

But I would like to use an open source software instead.
Would gpsVP be the right software?
http://code.google.com/p/gpsvp/

Or World Wind?

I need:
- Import of raster maps with the TTQV cal files. Including ECW format.
- Moving map
- Touchscreen Operation including virtual keyboard input for track and
waypoint names
- Capture and display Tracks and waypoints

I can help writing software. I have done my own open source software,
see:
http://sourceforge.net/projects/flowswot

Or maybe there is another open source software that comes close to
TTQV?

Thanks & regards