Why Node.js for your cloud?
Javascript is everywhere. A developer who has done any kind of web development has most likely written it. Whether it's in the browser on a server, appliance or mobile device, Javascript is virtually ubiquitous, which makes it a highly accessible competency.
With Node.js you prototype quickly and go to market early. A high level language built on top of a platform that exposes low level functionality simply yields results. And as the Node.js ecosystem of production hardened libraries evolves, it becomes even easier to deliver robust networking applications.