I'm hoping for a break-apart move/dualshock hybrid.
I finally found the video!
http://www.gametrailers.com/player/usermovies/231233.html
and we've all seen the patent that involved move controllers combining to make a more standard controller.
http://digifaq.blogspot.com/2011/02/is-prototype-ps3-break-apart-controller.html
4 ≈ One