wpCoordinates replaces coordinates between a [coord] tag with a link to Google Maps.
To adjust the link layout of transformed links open wpCoordinates.php in your favorite editor and adjust the following variables:
$zoom: the zoom level, default is 15. Try some values between 1 and 17 (I guess)
$type: map type, i.e. m for map, k for a satellite image, h for hybride (satellite image with street names, etc.), p for terrain
$url: URL scheme, replace .de with .com for an english version of Google Maps. DON'T forget %LAT% and %LONG%