node-stream-stream: A stream of streams in order to concatenate the contents of several streams
It may have all started from a question on StackOverflow where someone was trying to read sequential log files in a unified fashion. I first created node-catstream but then realized I could make something more general
I advise you read the Readme file. It really is not that complicated.
If you need to use this module in your projects, it is available on NPM
npm install --save stream-stream
node-stream-stream is part of my first experimentations with the new Stream2 API in Node.js 0.10