totally PhoneGap newbie here, but looking to learn the basics of how to interact with a Rails 3 web app using Phonegap.
I\'m looking to release a lightweight versio
Your production rails app will live at some domain. Specify a manifest of css, js and templates to be cached locally and distributed with your app. Point your XHRs at your production rails app to fetch data and render everything locally with something like mustache.
A client-side MVC framework like Backbone is useful in this situation.
Read PhoneGap's Get Started Guide.