Re: Breadcrumbs

> Is ... media="aural" currently supported by any assistive technology?

Nope, not that I know of.  And Aural CSS was also deprecated, see 
http://www.w3.org/TR/CSS21/aural.html

A. 1. ... The type 'aural' is now deprecated. 
This means that a style sheet such as 
@media speech {
  body { voice-family: Paul }
}

is valid, but that its meaning is not defined by CSS 2.1, while 
@media aural {
  body { voice-family: Paul }
}

is deprecated, but defined by this appendix. 
- - - - - - 

And why does it matter for breadcrumbs?  Sighted users see the greater 
than sign.  Why would you want to hear anything different than what is 
displayed visually?  Screen readers provide access to the visual content, 
they are not for everybody.  Whether one use the greater than sign, or the 
vertical bar, or colon, or some other character or icon is a different 
discussion than providing technical access.  What ever the sighted user 
sees is what the screen reader user wants access to as well. 

Regards,
Phill Jenkins