If this were posted to Reddit, then a quick explanation of what git and vim are, and why a wrapper is so useful would make sense. But this is Hacker News for heaven's sake.
Which completely fails to answer the basics:
What is fugitive, what problem does it solve, and what do I need in order to run it.
I'm getting the impression that it's a plug-in for the vim text editor, but considering that I had to dig to get that basic lead information, that's really bad.
As it is, currently the website has no information other than the raw source-and a google search reveals no additional information.