It only adds a viewport meta tag and some styling which applies to small screens only by using a media query.
Please use it! Afterwards the site will look like this on the iphone: http://minus.com/lGBmQmM4CrdHE
Why can I commit directly to the github repository? I thought that by clicking edit, I would create a fork and work on that and create a pull request later. Strange. Or is this some kind of open-to-all repository?