Magit combined with Magithub already offers much of what's described in the article and there's a lot on the roadmap. Jonas and Sean are doing mindblowing, amazing work in these projects. I've seen many different UI shells for Git - everything else feels childish compared to what's possible in Emacs. I learned Git mostly by trial, error and reading man pages, but only after a few months of using Magit I've become truly dangerous.