It doesn't really help with mistakes, since the 'reader' pauses, stops, starts, and just generally uses whatever tone it wants to, regardless of your punctuation... BUT, that said... it's really funny to listen to :D hehe
The next logical step was to automate that. I downloaded Greasemonkey and wrote a 4 line script that would add ?.jpg to every link in a document. That way I was able to browse most sites without a hassle.