Does the use of schema.org markup create a ranking benefit?

I know that rich snippets can increase CTR for my mention on a SERP. But is the use of schema.org code beneficial for my actual positions on the SERPs as well?
Quincy, Rotterdam

Have a question? Ask it in our Webmaster Help Forum: http://groups.google.com/a/goo....gleproductforums.com

Want your question to be answered on a video like this? Follow us on Twitter and look for an announcement when we take new questions: http://twitter.com/googlewmc

More videos: http://www.youtube.com/GoogleWebmasterHelp
Webmaster Central Blog: http://googlewebmastercentral.blogspot.com/
More resources for webmasters: http://www.google.com/webmasters