Hello Fellow Drupalers,
Well, as of today no where online is there info on how to theme those dreaded gmap popups for drupal. Well, I am happy to share this with you. I spent hours learning to do this and only hope this will help someone NOT spend hours. My theme efforts were for map/node path/page. Not for any blocks or any other embedded gmaps, but I think my solution will still work, although I have not tested it for other scenarios.
:)
Ok, before I begin I want to explain a bit of what is happening on the map/node,
http://new.felixapartments.com/map/node
Ok, click on those little markers and watch the themed popup show up.
So now you have a visual of what I am talking about, let me explain what is happening. When gmap loads those makers, it essentially loops through each node (in this case) or user and then assigns a marker. In the background of each marker, on each loop, it actually acts as if it is loading that particular node (node or user) that the marker represents. So, for first marker, it gets the node info, then prepopulates (if i can explain it this way) the marker by running that node as if you were to open it in another window. Basically, that little popup can be thought of as the node page, just within the popup. Think about that for a second. It took me a while to understand this...