Jorge - working with tiles has its upsides (you can choose the resolution you want, possibility for local caching etc.), but will make the code much more complicated and slower to run since it will require several images to be downloaded for every map you want to display.
I don't have plans to get to it in the near future...
I don't plan
Hope you remember as I pointed out the need to put 'map scale' on the google plots. You said that you will work on it later when you get time. It seems this is still a persistent issue with all users using your anyway 'GREAT' script. However, I have come across another submission on FEX for making scale and very simply I have been using these two scripts for my purpose since long time. Just thought that this might help others and also to you as it might save a bit of your time. :)