[MathML3-last-call] PMML @title attribute

Dear all,

  has a @title attribute for presentational MathML elements ever been
specified?  Firefox supports it (and currently displays it as a mouse-over
tooltip), and we are using it in our applications.  However, I don't see it
specified in the MathML 3 WD.  Are we interested in such an attribute?

Cheers,

Christoph

-- 
Christoph Lange, Jacobs Univ. Bremen, http://kwarc.info/clange, Skype duke4701