I recently download My Tracks apk. It's from Google Inc. This application require your GPS to be on and locked.
So when you move it able to record your movement on it.
Later when you finish recording your movement, it can show you you the path that you've taken. And report telling you how far was your travel, how long it took, how many minutes you've stopped.
The issue is my HTC Hero sometimes having problem locking the GPS. If you try this My Tracks while the GPS still not locked, you'll get nothing but the drained battery.
It won't record any of your path, and you'll running out of battery.
