Interesting. I used both Evernote and DEVONthink on OS X before. Now, I'm storing all my notes in plain text org-files on my Dropbox - but without version control. Do you share your git-repos via Dropbox or somethink like that? Or do you have a git server somewhere else?
I simply use a private Bitbucket repo and my commits are mere lazy timestamps. Nothing fancy.
I've been using org-mode and git myself. I've used the bundle command to back up repositories in Dropbox, but for things I want to use on multiple computers, I set up an account on BitBucket and just push and pull my changes.