XVim is a plugin for XCode to enable Vim keybindings in it.
Download XVim.zip and extract it into followng direcotry.
$(HOME)/Library/Application Support/Developer/Shared/Xcode/Plug-ins
Make the directory if you don't have one already. Then restart XCode
Download source code and just build XVim.xcodeproj. It automatically build the plugin and installs into the proper directory.
Any suggestions,bug reports or feature requests are welcome. I really appreciate if you send a pull request for improvement.
Fortunately, some people offer donation for this project. Donations are accepted via Paypal. See the following project page.