As in the case of HTML5 web workers, some browser vendors will not implement HTML5 standards, hence slowing technology adoption for all of us. Let them know that we will do it, with or without them.
Spec:
http://dev.w3.org/html5/workers/
Microsoft has no plans to support:
http://www.jeffdepascale.com/index.php/general/internet-explorer-10-preview-no-sign-of-web-workers-among-others/
How to do it in IE (and other browsers) anyway:
http://bit.ly/irM6XV
Thank you.