As a former user of ozi on windows mobile I miss the following thing:
When you create a track/route manual on the device in orux maps, you can add the route points.
A great thing and hep for this progress would be, if you coukd add a point in the existing track.
In former times on windows mobile I made almost all mytracks on th device:
Startpoint - Endpoint - Track marks now the shortest line.
Now I started at the Startpoint inserting the points of the track / route.
Track becomes more an more polish, and you see everytime the track to the aim.
That was a great help to manually create a track on the device.