I have been a long time experimenter with alternative interfaces. From mice, to feet driven mice, to touch pens, speech and neural interaction and more. So I was interested when I saw the 'Surface Dial', being used for another channel of interaction on the Microsoft Surface. There are other similar devices out there as well. Most important, what software and other hardware works with the Dial? How can this be used efficiently with other interactions, like voice and mice and touch? What does it mean for an integrated assistant like Cortana? It could lead to the ultimate need for 'hands free' interaction, since it engages another hand. Verge talks software and the Dial system.