I think the OP is talking about ‘schema’ rich snippets.
They are definitely very current. I haven’t had experience with them yet but I need to as they are apparently a good SEO benefit (according to SEO forums etc).
There are a number of plugins that help you implement them by the looks of it:
http://www.wpsuperstars.net/rich-snippets-schema-plugins-for-wordpress/
Cheers,
Andy