I thought about it too, and for me, I just can't do it... I've seen the Shimano A530's (double sided pedals) in my LBS, and even sat down on a demo road bike with them. Clip into them, or flip them around and use the flat platform. But like I said, I just can't do it... Maybe it's me. Maybe I'm just weird.

Honestly? Old C&V style road bikes, friction shifters, gumwall tires, etc... would look a little odd with clipless pedals. Sort of anachronistic -- I think that's the word.