Most often, I need UI, because I need to be monitoring flowing information + take action when/where need be.
In that sense, what would be more useful is a framework giving an interface like the old Norton Commander or Htop. Is there any thing like that in node?
An example of a project I want to get to using it is a database CLI app - it can save your credentials, lets you connect to and query the db, give auto-completed suggestions, etc. This is now really easy to do in Javascript, and you just couldn't do that before very easily.
On your question, yeah - there is something Norton Commander-ish - it's a library called blessed, by Christopher Jeffrey, who's pretty boss at CLI apps:
And by the way great work with vorpal, I'm kind of rolling my own CLI command trickery in an app/platform I'm building on top of i9n (kind of a platform to integrate dev tools like a database app, a pluggable IDE of sorts), but I'll probably put Vorpal into i9n soon and use its many features from there.