In reply to James Rushforth:
> Would just be great to have all the GPS routes uploaded to the same map for future reference.
Wouldn't the map become rather cluttered?
Are you wanting to use this annotated map for actual navigation, or as a 'look at all the places I've been' record?
If for actual navigation, then having the routes stored, and selectively shown would seem preferable. I've never explored the maximum number of tracks OruxMaps or Locus will allow you to display.
Is there a similar limit for kml files?
Can you combine all the routes into a single file (end transitions might be troublesome...)?
I wrote a script a while back to do a crude GPS lat/long to linear conversion a while ago; not a proper reprojection from WGS84 to OSGB36, but accurate enough for local scope use...