I've got the two-in-one type of Shimano pedals: PDM324
http://www.nashbar.com/bikes/Product...60_-1___202363
They're good, but what I want, are a three-in-one style. I want the cleat on one side as it is, and the platform on the other side as it is, but then on the platform side, I want a toe clip as well. The toe clip would rest folded down inside the pedal, so I could ride with just the platform or so that it would be out of the way when I ride with the cleat. Then with a tap on the side of the pedal or something like that, the toe clip would unfold and become a useable toe clip.
So there's something for all of you so-called "design students" who flood these forums with posts like this every year to work on.