Foreign namespaces in XHTML 2.0

Hi,

Just wondering if and how foreign namespaces elements and attributes are
supported in XHTML 2.0...

The current RELAX NG schema for XHTML 2.0 forbids both foreign elements
and attributes. Does that mean that they shouldn't be used at all or
that people wanting to use them should add modules? In that case, should
they indicate which modules they are using in their documents? If yes,
how should they proceed?

Thanks,

Eric
-- 
GPG-PGP: 2A528005
Curious about Relax NG? Read my book online.
                                   http://books.xmlschemata.org/relaxng/
------------------------------------------------------------------------
Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
(ISO) RELAX NG   ISBN:0-596-00421-4 http://oreilly.com/catalog/relax
(W3C) XML Schema ISBN:0-596-00252-1 http://oreilly.com/catalog/xmlschema
------------------------------------------------------------------------