I was amused by the idea to propose Linus Torvalds for a Nobel peace prize. But it does make sense to honor the Open Source community in general for the collaboration across many boundaries. Open Source levels the playing field for anyone to innovate and improve, it is an extension of what is known in the academic world applied to Information Technology on a global scale, facilitated by the Internet.
The original link lists a few projects for the common good, but to me it's not so much the individual projects that make a difference, but rather the global mindset it created among peers for the better good without discrimination. And there are many more examples to proof this than looking at specific projects. It would harm our efforts if we would only look at specific initiatives, rather than our collective collaboration.