Learning VIM in Xcode comes with its own set of challenges and limitations, but there is enough there for you to give your mousing hand a break and master the keyboard.
A limited set of commands are available in Xcode, and this document attempts help ease the learning curve of using VIM in Xcode by providing a handy reference as well as what I find works for me in practice.
NOTE:
Commands are case-sensitive. A command of N means pressing shift + n on the keyboard.
This document is a work in progress! Leave a comment if you would like to see a change.