Hi,
It happened to me twice that the NST app (2.06) on my N81 stops tracking after I take a picture. well, not entirely - the distance gets stuck, but the time keeps on running.
This has happened to me a few times also.
Jonny (V 31.0.017, 16-12-08, RM-159, Nokia N95 (02.01))
Arrrrgh!!! I never do sports, now with the N85 I cycled for 40km... After I toke the first photo I got this error: "Error writing on Memory Card, try again or you will loose all data". After I tried again, I saved the photo on the phone-memory.
The time continue, but no GPS-data anymore (I saw it at home).
The map is here: http://sportstracker.nokia.com/nts/workoutdetail/index.do?id=1345250
N85, last firmware and st 2.06 beta