Qts accessibleNames & accessibleDescriptions

Hi!

I am currently in the process of writing a screen-reader-like application 
utilizing the DBUS accessibility bridge 
(http://labs.trolltech.com/page/Projects/Accessibility/QDBusBridge).

While trying it out, I realized that pretty much no program correctly sets 
these properties (they are properties of QWidget) - not even for the main 
window.

Is there a particular reason / alternative way of determining that information 
that I don't know about?

Because setting these properties would:
* Help Screenreaders and other accessibility software to correctly "read" the 
application
* NOT decrease performance (qt does this by collecting all its accessibility 
information in "plugins" which only get loaded if needed (i.e. accessibility 
features activated)) / increase RAM usage

Any hints would be greatly appreciated.

-- Peter