I'm not aware of any, but I suppose this means you can use your preferred tools even if the rest of your team disagrees.

For my home projects, I used Mercurial for a year since I preferred its command-line tools to Git. When workable GUI tools for Git appeared (starting with Github for Windows), I migrated to Git.

Also, a small bravo to Fogcreek for using a screen grab from Windows. Windows is so uncool that we need some Windows screen shot affirmative action.