I'm really confused, can I simply paste a link into my page and have it work? this article says I can but step7 it doesn't change into shortcode for me http://en.support.wordpress.com/google-maps/
I've tested quite a few plugins and I prefer wp-geo, but it does add to my overhead. However adding a googlemap iframe to my html for the page causes validation errors, and the plugin does not. Therefore I think better to give with the plugin and take the overhead hit.
What is your opinion about googlemaps and wordpress?