Also, what happens if the battery runs down completely? Does it go into sleep mode or power off mode? ie will I lose the tracks if I forget to turn the unit off?
I'm using the past tense because in the forthcoming upgrade the statistics window has been totally overhauled. It now provides access to all journey logs stored on the device and any log can be loaded and its statistics examined. Logs are still stored permanently but the statistics window give you the opportunity to delete logs if you wish. You can't recall old breadcrumb trails on the device, but we'll probably add that in the future if it turns out people want to do that.
We'll probably post a beta build of the forthcoming version today.
It remains on the device regardless of powering down the device. So you can download the beta version or wait for the next release, there are some other very useful additions included as well