Microsoft today released a preview of Internet Explorer 10, and as of this first release there are no signs of Web Workers or other wish list JS items in IE9. I’ll give the benefit of the doubt as this preview is exceedingly early and it seems to be focusing on CSS3 improvements, but so far, no dice. Having said that, it’s good to see the new IE team focusing on a more fluid and transparent release schedule, with previews promised frequently and a full major release cycle potentially being within an 18 month window if the timing of this first preview is any indication.