title: rails 3 + devise: on after_inactive_sign_up_path_for() how show the not-yet-confirmed user's email address?
body: <p>In order to have a post-registration page, I added a RegistrationsController and method to provide a custom page to tell the user to check their email for the account confirmation link.</p>
  
  <pre><code>  def after_inactive_sign_up_path_for(resource)
      "/awaiting_confirmation"
    end
  </code></pre>
  
  <p>Is there any way on that page (which is seen by a user who has created an account, but not confirmed it, and not signed in yet) to show the email address they used to create the account.</p>
  
  <p>I'd like the page to say "we just sent a confirmation link to you at useremail@userdomain.com"</p>
  
  <p>But the view for that page cannot display current_user.email because current_user is nil because they have not signed in.</p>
  
  <p>Is there some other devise variable, or session variable, that would contain the registration info that was just created?</p>