Here are my routes for this app.

pages_controller_spec.rb

require "spec_helper"

describe PagesController do
  
  describe "routing" do
    it "recognizes and generates #home" do
      { :get => "/pages/home" }.should route_to(:controller => "pages", :action => "home")
    end

    context "when no user is signed in" do
      it "routes the root route to pages#home" do
        RootConstraints.stub!(:matches?).and_return(false)
        { :get => '/' }.should route_to(:controller => "pages", :action => "home")
      end
    end

    context "when a user is already signed in" do
      it "routes the root route to 'lists#show/master" do
        RootConstraints.stub!(:matches?).and_return(true) 
        { :get => '/' }.should route_to(:controller => "lists", :action => "show", :id => "master")
      end
    end
  end
end

root_constraints.rb

class RootConstraints
  def self.matches?(request)
    if request.env['warden'].authenticated?(:user)
      return true
    else
      return false
    end
  end
end

routes.rb

require 'lib/root_constraints'

Tuhmayta::Application.routes.draw do

  get "pages/home"

  constraints(RootConstraints) do
     root :controller => "lists", :action => "show", :id => "master"
  end

  root :to => "pages#home"

  devise_for :users do
    resources :tasks
    
    resources :lists do
      
      member do
        post :sort
        post :add
      end
    end
  end
end