gmaps.js allows you to use the potential of Google Maps in a simple way. No more extensive documentation or large amount of code.
GmapsJS, the gem, bundles gmap.js in a easy to use Rails Engine compatible with the Asset Pipeline introduced in Rails 3.1.
Add this line to your application's Gemfile:
gem 'gmapsjs'
And then execute:
$ bundle
Or install it yourself as:
$ gem install gmapsjs
Add the call for GmapsJS to your manifest file, like:
//= require gmapsjs
Read the documentation and examples at: http://hpneo.github.com/gmaps/