node.js and io.js really need to merge or one has to die. I can't see this turning out well unless one or the other happens.

io.js is trying to push the envelope by supporting ES6, more APIs, etc while node.js isn't focusing on that. This eventually means if I write my module for node.js it should still work for io.js but if I write it for io.js, even if it does take advantage of better performance, ES6 syntax, etc, it won't work for node.js.

I can't imagine anyone wants that kind of fragmentation.