Earlier quoted context omitted.
It's been down for over an hour. For some of us who work on projects during weekends, this IS one of the busiest times. I don't know about you but seeing mine and other people's repositories and history completely gone is unsettling, to say the least. And regarding being able to work without it - well, I happen to need to look into the source code for some of the libraries I depend on.
Git is a dvcs and while magical, GitHub isn't the only way to view a repository or its history. If you have a clone of your project (and you do have a clone, right? One copy of anything and its never safe), the entire history is still there. You can view it with `git log` or any other web interface out there.
Believe it or not, in this case I did not have a clone of that external library, since I am using it as a jar. I was therefore relying on GitHub for browsing the actual source code.