Until today I have only been able to make minor edits, such as road names, speed limits and suchlike. Today, I finally got my GPS working.
Its a Pocket PC version 4 system, recording tracks with Beeline GPS. Fantastic program, but its not free. Does anyone have any experience of similar programs which wont cost anything?

Anyway, updated a few of the roads around Barnstaple and added a few new ones, waiting to see my edits on the slippy map. May take a walk around and map a few of the missing roads soon if the nice weather keeps up.