Hi Milo, we are big fans of node.js. We have a toolkit for accessing the APIs from node. It’s on github. However, for real-time publishing of messages the platform supports both Ajax long polling and Web Sockets as well as MQtt subscriptions. Lots of web socket examples coming very soon ;) to github.
We are doing some interesting things w/ images. We’re currently working on a lot of Augmented Reality use cases for the platform. I’d love to learn more about what you’re doing when you have time.
Thanks for reaching out!