The maps will eventually mostly have geo coordinates relating them to the area they cover, and I've now modified the code which creates KML files from place information in the places collection so that it can also create KML based on a map document id. This enables us to create a link to Google Maps, passing the KML URI to Google, to see the area laid out over a modern-day Google map.

Can't test this till we have it up on the main site, because it works from a hard-coded site URI which is supplied to Google.