I have another problem: after some time ZapLoc stops updating Google latitude when moving more than 150m. It usually happens while driving and when another navigation progrm is on. I tried running zaploc-daemon -v, and it looks that when this happens the daemon calculates the movement to be very small, even while driving. After this happens the only way to make the daemon update Google Latitude again is killing it.,removing /home/.user/.zaploc/lock.dat and restarting the daemon. Maybe it measures from the last GPS data and not from the last Google Latitude update?