An implementation of Backbone Model and Collection using the promise pattern rather than passing callback options. Supports popular deferred libraries like Q and jQuery.
I think I must be missing something here, but Backbone already implicitly implements the Promise interface via jQuery. "The jqXHR objects returned by $.ajax() as of jQuery 1.5 implement the Promise interface, giving them all the properties, methods, and behavior of a Promise." You can already write things like myCollection.fetch().then(...) without any special library. What does this library add?