In fairness to the OP, there are other devices out there that do make any surface touch-sensitive, such as projection keyboards[1]. I remember seeing those devi

In fairness to the OP, there are other devices out there that do make any surface touch-sensitive, such as projection keyboards[1]. I remember seeing those devices being released more than a decade ago, thinking these kinds of devices would be the future. It has surprised me it's taken this long for the next evolution of this product to come to market (possibly due to licencing issues with IBM?) but it's really exciting now that it is finally here. [1] https://en.wikipedia.org/wiki/Projection_keyboard https://en.wikipedia.org/wiki/Projection_keyboard