Apperently this program cannot keep tracking for any major length of time on my 8830. If screen gets locked it simply stops. Same thing happens if the application loses focus for any reason.
I wanted to track my bicycling trail but no luck, and my longest tracked length so far is only 1 km. I bicycled for well over 15 km that day.
"There is no reason anyone would want a computer in their home."
- Ken Olson, 1977
( And we now wear them! Blackberries are computers too! )