Was reading this article last night

http://xseignard.github.io/2013/06/25/interfacing-leap-motion-with-arduino-thanks-to-nodejs/

Which got me onto this

http://makezine.com/2013/07/20/javascript-powered-arduino-with-johnny-five/

and

https://github.com/rwldrn/johnny-five

Any thoughts of what it would take from the RA end to support johnny five? Could be some interesting / cool apps that can be build this way.

You would need to merge the firmata protocol with the html protocol inside the webserver parsing code.