How does one get a Rails 3 "app name"

From within a Rails 3 Gem I'm working on, I need to get the app's
name. i.e., the value of the module that wraps the application class
in application.rb. Is there some global-syle variable that contains
that?

#application.rb
module MyAppName
  class Application < Rails::Application
  end
end

Thanks.
Elliott G

Rails.application.class.parent

Daniel Gaytán

Thanks Daniel!

I need to sift through Rails.application in general it seems.

Elliott G