Compiz like Zooming function

[zK <zk nimless com>]

Hi!

I've been trying Gnome-shell from an Ubuntu PPA for a while and been
liking it a lot so far.

I'm not sure this is the right place for such a feature request/Idea ,
but since I heard Gnome-Shell has its very own compositor, I would
really love to have a Zooming function implemented like Compiz / Mac OS
X that allows me to zoom specific part of the Desktop.
It would be very useful for screen cast and such and also for big
screens when showing stuff to your friends .
Also it would be more useful to the visually impaired people than Orca
and the default gnome accessibility applications in my opinion.

What do you think?

Franco