Over the weekend i looked for a plugin for node.js in netbeans and ended up tryin this one:
Actually its all said on the post itself: installation, features and restrictions.
So go and read it.
Its still a bit early stage and only runs on a nightly-build netbeans but it already has some helpful features.
For me i just like to have a node.js icon as my project icon ;).
No serious, i like the npm support, see image, especially for browsing the modules to see what is all available.
A GUI for installing the modules and editing the package file i dont really need but its nice to have.
Then starting the app from a button in netbeans is also nice.
I guess whats missing the most is code completion, maybe that will be added sometime soon.
I hope so, because having code completion for node modules would be pretty cool.