P.S. marin
the maps domain is actually google.com period. No country at all, the country does not come into play unless you append on your map.
They dropped country specific a long time ago.
The domains designation is leftover from the first launch of the plugin , but as I confirmed with the developer it should not make any difference whatsoever.
More info about Country domains and the role they play in SLP
Regardless of what country you select as the default, any location in your location database can be returned by the search regardless of the country in which that location resides.