> ...or is GPS just inherently less accurate for height than it is for latitude/longitude? Here is an article that could be helpful. It's about an upcoming GPS satellite reorg, but the pictures show how different lat/lon and vertical accuracies are. (Scroll down to Horizontal Accuracy and Vertical Accuracy.) http://blogs.agi.com/navigationAccuracy/?p=315 Some explanation of the issues affecting altitude accuracy: http://weather.gladstonefamily.net/gps_elevation.html _______________________________________________ maemo-users mailing list maemo-users@xxxxxxxxx https://lists.maemo.org/mailman/listinfo/maemo-users