Editable maps directly on GPS device?
Anyone know if it's possible to edit a map on a GPS without connecting it to a computer? That way, when a road is under construction, you can make your GPS avoid that road for a given amount of time. Or, when it thinks you're driving through a park, you can draw in a road that didn't exist on the map. Or, when a one way road changes ways, you can update that fact directly in the moment, while driving, on your GPS?