I’ve just searched for method of integrating VIM with Perforce.. first shot was https://github.com/vim-scripts/perforce.vim – at a glance looked well:

Features:
- menu and keyboard shortcuts to open (checkout), revert, and sync files.
- prompts to open a file for editing when you attempt to change a checked-in file.
- perforce status displayed on the ruler.

Until I reached this:

- tested on Windows operating systems only.

Bloody hell I say.. who the heck makes integration of P4 and VIM outside (and only outside) Lin? :) It made me really amused :)