Jeff,
I was looking at your link for the issue comparison chart. There are a few links on the document. Can you point me to which a link detailing an Obama tax proposal for homes over 2400 sq ft? I would think a lot of people will want to know about this in more detail.
But, I too could not find the documentation affirming the 2400 sq ft (I'm still searching) outside of reference to other taxes. and so have removed it from the page. His desire for a 28% capitol gains tax is real...but I have not verified the other.