I haven't seen any word on this for the last 3 years, and generators have been approved for ES.next:
http://wiki.ecmascript.org/doku.php?id=harmony:generators`yield` would be an extremely useful addition to javascript, especially for node users. I know that node-fibers exists, but something native goes a lot farther and is also available in the browser.
Is `yield` on the roadmap at all for v8? It would be awesome if so. I think it's about time.
- James