I came across a toolkit called ActiveSalesforce being developed as an extension to the Rails framework. Per the site,
“ActiveSalesforce is an extension to the Ruby on Rails framework that provides direct access to Salesforce.com hosted data and metadata via the ActiveRecord model layer. Standard and custom objects, standard and custom fields are all automatically surfaced as active record attributes. Something that is unique to ActiveSalesforce is that all salesforce metadata relationships are also automatically surfaced as part of the model interface!”
It looks that this is utilizing the latest 7.0 API. If anyone knows more about this, please elaborate in comments.