At last nights Orange County ColdFusion Users Group meeting (occfug.org) I presented on the topic of integrating the Google Maps API into a ColdFusion application. I made a custom tag for the presentation that generates a Google API powered map, and I am posting it here for all the people that wanted access to the source code.
The cf_gMap custom tag is used to generate the map and you can add markers to the map by using the cf_gMapMarker tag. In the future I want to add the ability to specify custom icons for the markers but I have not had time for that yet. Also, this tag currently only works with ColdFusion 8 because I used the cfajaxonload function to initialize the map, but that can be easily modified if anyone wants it to work with older versions of ColdFusion. If you have any other suggestions for additional functionality that might be useful, please leave a comment below.