Update:

I mapped a substantial area of Teignmouth (South Devon) last Friday. By using the 'moving' OSM map as a guide, whenever I came across a street that wasn't on it, that's where I went. Three hours of recording (and walking!!) were very productive and not one of the tracks was a repeat.

I was also able to use the Waypoint Recorder of my software to upload a few POIs. A grand day out!!!