For Iran, eg, --
(a) using the NA Mappoint 2004 Iran map, I can zoom in OK (altho' there are just a few towns and no roads). I assume that when I have added my Lines (Road Segments), I will still be able to zoom in.
(b) I plan to construct around 600-1000 road segments for the whole country, plus all the Cities and Towns (entered as Text on the map) as shown in (eg) Expedia.. Best I can do, with time limitations.
(c) I found a digitizer called 'grabit' ($25?) that is amazingly effective - it puts the points where you click (lat/lon) straight into an Excel spreadsheet
(d) I will put the screenshots on the List as and when I complete the work for the various countries, in the unlikely event they might be useful to anyone .. the Maps and database tables will be in the Public Domain as far as I know (I will check)...
(e) The clever trick for stopping the user from moving PushPins (see below) was v. useful!