According to Alam, the company had initially experimented with the idea of introducing smell-o-vision to the controller, allowing gamers to smell the environment their game was in, such as burning rubber from racing games, the smells of the forest in games like Crysis, and so on. However the smells turned out to be too overpowering and took a long time to leave the room which we guess is not a pleasant experience.
Alam also revealed that Microsoft had toyed with the idea of introducing a small screen and tiny speakers embedded into the controller, but unfortunately due to battery drain, they decided against it. Pretty interesting concepts, but what do you guys think?