Cables is absolutely fantastic. I used it personally for an art project, as well as was involved with a commerical AR experience which used cables to run elaborate, fully interactive 3d scenes in a normal browser, on mobile. As with other node based languages (e.g. vvvv, max/msp), you edit your code while it's running, so you directly see what you're doing without constantly switching interfaces. And in the end it generates a js file you can just embed in an iframe. Honestly, no idea why this is not more widely used, huge fan!