Node Red available on GitHub
Node-RED is the visual tool for wiring the Internet of Things that Nick O’Leary and Dave Conway-Jones have been working on. What started as an educational exercise to get to grips with technologies such as Node.js and d3, soon turned into a tool that provided real value in client engagements.
One of the goals all along was to open-source the tool; to build a community of users and contributors. All the approvals needed are in place and at the start of September Node-RED has been released as an Apache v2 licensed open source project on github.
You can find out more here: nodered.org.