Yes, asm.js shouldn't be making JS devs too excited, because you shouldn't write asm.js code directly. It's best to take a strongly typed languages and then run it through an asm.js compiler. JS isn't strongly typed and many of the optimizations are unavailable to JS devs. I am happy that V8 is continuing to focus on optimizations that serve the JS writers and I hope the language survives because I really love writing it.