<< damn I must have, I could have SWORN i saw one a couple years ago tho >>
You probaby saw a dual slot 1 from a distance, they can look AGP'ish. And some high end boards have better versions of PCI (64bit and/or 66Mhz), some of which use an extended slot size..
It would be nice if a company would put dual CPU->AGP controllers in a chipset though..