It’s a mystery.
- MyMarks—if you use Xmarks to synchronize your bookmarks across browsers/machines, you can use MyMarks to browse them from your mobile device. It’s a Sinatra/jQuery Mobile app written by our very own Michael Grosser. It’s also on Github.
- user_env_compile—an experimental Heroku Labs feature that makes your application’s configuration variables present during slug compilation. This is useful if, for example, you need the environment loaded when precompiling assets.