Mercurial tagging for XCode

I've used many version control systems, but this week has been the first time I've used Mercurial for anything more than a bit of testing. It looks good to me, so I read a bit around to see how people are using it in their projects, and I came accross Lajos Kamocsay's post about how he includes Mercurials branch and revision information in his Xcode projects that I think deserves a shout-out.