I found it! That is very interestting. It really makes me wonder know if apple has anything else up their sleeve. What could it be though? The only thing that would really be a surprise would be the video conferencing/front facing camera but I don't think people will be in shock and awe if they announce that later like a huge surprise.
Where is that iPhone patent with all the extra features on it? Its probably a few of them, maybe even all if we are lucky!