I serve on W3C's HTML5 Working Group. This certainly would help search engines along the road. I wouldn't think this would hurt SEO in any way, may actually end

I serve on W3C's HTML5 Working Group. This certainly would help search engines along the road. I wouldn't think this would hurt SEO in any way, may actually end up helping. I am not too involved with SEO stuff, but I can help with other stuff you might be interested in with focus to HTML5.