BDO errata & xml:base/xml:id

At 
http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_bdomodule 
, the attribute listed as Core mistakenly links to "Common". Also, "bdo" 
should allow "xml:lang" per the DTD.

Also, while XHTML does have facilities already for expressing xml:base 
and xml:id, would these be reasonable to include in the Core attribute 
collection? (I wouldn't use them myself, nor would anybody need them, 
but since they are general purpose for XML...).

Brett