I believe gamification is a limited resource for adult learning,,, I hold stronger belief in self-directed and heutagogical approaches. I see your point that badges are a potential game layer over existing diploma and certificate approaches. Where I see the strength for badges is in the development of badge systems over the areas of learning not present within the traditional institutions and ProD programmes. Particularly, when a learner or group of learners create their own badge system to recognize and validate the learning that occurs outside the traditional. I see badges have a place within the realm of informal learning...