RDFa on Rails

Not sure if this is news or not, but I just ran across it:

"The rdfa library for Ruby On Rails adds a set of helper methods to the  
ApplicationHelper of your rails application providing developers with  
abstractions for the publishing of RDFa data. The library also contains a  
theme for typo which embed structural rdfa data in your blog."

http://rdfa.rubyforge.org/

Best wishes,

Steven