Installation should be easy: just drag Vim.app to where you want to keep it. I put it in /Applications/ . Unless you want a maximally vi-compatible version of vim, it is recommended that you copy the standard startup files to your home directory, and name them .vimrc and .gvimrc . From a shell,
$ cd Vim.app/Contents/Resources/vim/runtime $ cp vimrc_example.vim ~/.vimrc $ cp gvimrc_example.vim ~/.gvimrc
So.. that means that everything in /Applications/ is some kind of archive/directory. Interesting.