The Kindle – a public speaking tool

What an interesting idea.
I have just caught up with Denise’s article on using the Kindle as a speaking tool – you can use it for readable notes, to store multiple speeches and ideas for even more, and to hear your speeches, amongst other things.
What a classic example of thinking outside the box … or maybe using the box to think … (ouch!) I’m not sure, but an idea worth thinking about and trying out in practice, of that I am sure.
Have you used a Kindle this way?