If you were previously looking at integrating Backbone.js with Sammy, jQuery-BBQ, or another hashchange-based library, there's no longer any need. Instead:

    var Workspace = Backbone.Controller.extend({

      routes:{
        "search/:query/p:page": "search",
        "folder/:name":         "openFolder",
      },

      search: function(query, page) {
        ...
      },

      openFolder: function(name) {
        ...
      }

    });

Which will properly route URLs like "example.com/#search/lemons/p7"