I've tried to do some programming with Google Maps API and I have to say, that there is tremendous amount of work done behind this plugin.
It has ~80 options which is amazing.
I already translated it into lithuanian, that was hell of a job - because of all these extensive options. :)
Best of the best.

It's a nice extension, though it can be dangerous: there is a way of specifying full download path manually. With autopublish feature in hands of less experienced user this can be dangerous.
Let's say user changes the path from default "download" to site's root directory. With autopublish feature all files in root directory gets published. After user see a lot of meningless filenames to him in filelist, like "configuration.php", "htaccess.txt" etc., he realizes, that he did something wrong. So he reverts the path to the previous "download", but files in filelist didn't go away. So he chooses to delete them, and since there is only possibility to delete files at once from the server and from database, this action can crash the whole site. :) And it happened already. :)

It took me a very few minutes to install and set up. Works great on bilingual Joomfish site. Does what is supposed to do visually (I'm not an expert on SEO). Thanks!