This project brings some of the great eclipse features to emacs developers. It is based on the eclim project, which provides eclipse features for vim.
use rvm to manage ruby versions within emacs
Ruby Document Template Processor based on docx templates and Mail Merge fields.
get the maximum out of emacs
use rbenv to manage your Ruby versions within Emacs
A set of tools to make OS-X and iPhone development with emacs pleasant. It simplifies writing objective-c applications and provides utilities to compile and lunch the project.