For folks who want to use node-inspector in cloud or other environments that might be constrained in some way, I've put together a package that may offer some help: cf-node-debug [1].
I built this specifically for IBM's Cloud Foundry based Paas - Bluemix - but figured it may be of use for others as well. Cloud Foundry's constraint is that each VM can only have one HTTP port open, so you couldn't debug a web server since you'd need two ports. I use an HTTP proxy to multiplex app and node-inspector traffic over a since HTTP port.