It could be useful. In the past I have used Opera's built-in voice engine and it worked great.
If you think about naturally sounding voices it would be nice to add language selection.
I need to delete topic tools and post tools when I load a topic/post and now I use jquery to do this but I'm not satisfy from the result. In fact when I reload the page I see for a nanosecond the components that after there are delete fast. But I want that the user can't see this so anyone can help me to resolve in another way? With some hooks or some method?