NodeJS is async by default and RAD. Does it really scale at the corporate level ? depends on what is your product. If you are better off with the JVM or .net , there is no reason to use it. But in my opinion , it definetly has its place in startups.
The concern I express isn't with Node; it's with the front end tools like Angular that shift the cost of building UI scaffolding to the client side javascript engine.
The potential with Node is that you could have the best of both worlds, using the same code to render on client and server depending on which would provide the best experience given the current hardware and connection capacity. (Edit: it looks like Rendr and Derbyjs are starting to realize this potential)
