A Rival to NATO?

There's an article on CSM about the Shanghai Cooperation Organization, a military alliance potentially involving China, Russia, India, Pakistan, Iran, and the various -stans. It's an interesting idea, but do these countries have anything in common other than an interest in increasing their influence? It would be an extremely potent group, one that probably could rival NATO in power in coming decades, but I have a hard time seeing any coherent policies or positions that these nations could all agree on.