Is RDFa ready to use with GRDDL?

Hi,

I'm interested in RDFa and would like to try some my own examples.

But is RDFa ready to use with GRDDL?

i.e. Does RDFa already have a GRDDL-compatible profile like "Embedded RDF" 
or any transformation that extracts RDF triples from a XHTML1.0 file with RDFa marking? 
(I guess it should...)

If there are only partial implementations (i.e. with some restrictions),  
they are also welcome.

Thanks in advance.

Best,
Yoshio Fukushige
fukushige.yoshio@jp.panasonic.com

-- 
Yoshio Fukushige <fukushige.yoshio@jp.panasonic.com>
Network Development Center,
Matsushita Electric Industrial Co., Ltd.