Blog post: www.openmindedinnovations.com/blogs/leaflet-and-ruby-on-rails-with-google-tiles
This is the code for a screencast showing how to integrate Leaflet with Ruby on Rails with Google tiles.
video: www.youtube.com/watch?v=dxghnTqwnvo
leaflet: leafletjs.com/
Google maps api: developers.google.com/maps/
leaflet-google.js: gist.github.com/crofty/2197042