Ask HN: Does a Server-side Native Client Make Sense?

Have anyone thought of having NativeClient (Nacl) running on the server side, interfacing with node.js? I thought this would be really cool, mirroring some advantages of node.js. Suppose Nacl is supported on the server side (and let's call it nacl.js?), I could write high-performance code that runs on the client side AND deploy on the server side. This would also make it easy to deploy non-trivial C/C++ code on commodity server (assuming vendors support it, which I think they will thanking to Nacl's sandboxing model).

Your opinion? Flaw in my logic? Is someone already working on this? I think this would be a cool project.