Give me one example of a product that is a market leader that is currently based on opened-source (in a category that is at least as mass-market as a portable MP3 player). Now how about oen that turned around their market position by moving from closed to open?

I can't think of any. I believe having an open-source player on the empeg would be a wonderful thing. Generally, I think an open-source foundation never establishes a market leader and can't see any good reason for trying to come to market with anything that's open. Unless making any money isn't your goal.

Bruno