This is a tool which creates a Rails 3 Engine with Rakefile, Gemfile and a ready to run test suite on top of a vendored Rails application.
This is used in José Valim's upcoming book for Rails 3.
If you discover any bugs, feel free to send me a message or create an issue on GitHub tracker:
MIT License. Copyright 2010 José Valim. blog.plataformatec.com.br