This is just a quick how-to regarding the info-window information that pops up when you use GMap & Drupal.
The problem is the info-window was displaying zip-code, city, state on the 3rd line of the info-window. I didn't want that. I wanted the canonical city, state zip-code.
After searching my modules folder, I found the template that controls the output of the GMap popup window is in the Location module, and the template is location.tpl.php.