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I was very pleasantly surprised today to read that frameworks like Unity3D have already deprecated their NaCl and Flash support.

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Yeah, that was interesting news. NaCl is officially removed in Unity 4.5 (which just came out). Flash will be removed in Unity 5 (if it's not already?). According to the Unity at least, asm.js + WebGL is the future.

https://unity3d.com/unity/whats-new/unity-4.5#changes https://twitter.com/UnitZeroOne/status/471355979217793024

What will that do for non-firefox users though? asm.js is Firefox only, so it's another non-open platform really.

There's nothing Firefox-only about asm.js. It's a subset of JavaScript that runs in other browsers at reasonable speed since it's part of benchmarks that browser vendors are optimizing for.

The pragma may be Firefox-only but nobody cares about that.

It won't do anything for non-Firefox users: things will just work, which is pretty much the entire point and a pretty huge difference from (P)NaCl and Flash.

asm.js is nothing but a "hint" to the JS engine that some optimizations are possible.

IIRC, Chrome hasn't implemented support for the pragma because they believe they can get the majority of the benefits by making V8 smarter.

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