I have to say that I have gained a certain technical respect for Facebook after reading about React. I don't and have never used Facebook the webapp, so I really never developed interest in their technical stack (I vaguely knew it was originally PHP and they had done some work with HipHop etc.). But this seems like the first thing I've seen in a long time, maybe ever, that could actually make writing webapps pleasurable in the way that functional programming is.
You should also take a look at Javelin then. It's still more of a proof of concept, but if you love functional programming then it (seems promising to be) even more fun than React for building web apps.
Would you consider linking Javelin? I have had some trouble finding it. Apparently it is not on Wikipedia's Javelin disambiguation page, and my google-fu is weak.
