When an user explicitly go thru the trouble of holding the power button to turn off the Edge 1030, it means one wishes to ensure 1). all USB power goes into charging and not into acquiring GPS or displaying with backlit: e.g. like charging with a battery pack remotely; 2). one does not want to accidentally leave the device on only to find it drained right before a major ride/event because it had a mind of its own and powered on, especially if the cord got unplugged by accident or when one charges with a battery pack and the battery pack ran out of juice. All cell phones, dumb or smart, do this. Seem fairly common sense: if it off, leave it off. Can anyone at Garmin explain to me why a powered off Edge 1030 ex-flagship device has the "feature" of turning itself on, with backlit, when plugged into an USB, and stayed on after the USB is unplugged?