There may be a peculiarity of the n900 gps system that makes a config choice of 3 or less gps fixes unwise. I encountered this during a field test, in which my wife sms'ed "Location" to my phone whilst I was hiking (we intend to use smscon as a safety backup for solo hiking in areas with gprs coverage - I disappear, wife sends sms, gets coords, wife sends undertakers or some such...)

The relevant aspect is that I had used the n900's gps an hour or more before and some distance away from the test locality. The coords received from my n900 by sms came from the position where I had last used the gps (with a quoted error of 29m).

Smscon's GPS polling was set to 2 (mistakenly of course). Such a setting poses a clear problem if the N900 gps system is disposed to dish up old coords under some or other circumstance before delivering real one's. I suggest make it configurable, but from 3 onwards.

Last thing: it would be good to have a config option to keep the gprs connection up or have it closed and whatever was up (if any) reinstated (as is the case in the testing suite?). An established HSDPA/GPRS connection starts seeing weather, email and other progs start polling thus shortening battery life.

And thanks to devs for apps