google4r-maps allows you to create the HTML and JS necessary to display GMap2 widgets on your home page. The Google4R API allows you to place markers statically on the map and define custom icons for them.
This is useful when you just want to display some geocoded data without having to touch Javascript. This is useful for many applications that really do not need to be ``totally AJAXified'' or if you are early in production.
If you want to see how easy it is to create the HTML and CSS, have a look at these demos: