There is the current model as screen reader as an add on (assistive
technology) in the Microsoft Windows world, but there is also a different
model as the screen reader (and other current ATs) as part of the OS
itself.  To the consumer it makes access to computers much more affordable
and universal, since they do not need to locate and purchase AT to use
the OS.  I think Apple should be encouraged to use this model since it
would raise the level of awareness of all users and especially developers
to have a screen reader part of their system.  The major problem with this
is how seriously Apple would take the development of features and
usability.

Jon