Making touch screens operate like mechanical controls seems like it would need to satisfy hurdles. PROBLEMS: - sensing the "amount" of input, based upon tactil

Making touch screens operate like mechanical controls seems like it would need to satisfy hurdles. PROBLEMS: - sensing the "amount" of input, based upon tactile response. Touchscreens respond to varying amounts of pressure, sometime responding if a finger-tip hovers 1mm. Touchscreens may respond only after 100ms of contact. Touchscreens, in my experience, respond the same regardless of contact pressure. - providing tactile evidence describing the dimensions of the control. Touchscreens are flat and smooth. Touchscreens lack bumps and ridges to outline the non-interactive bezel areas, or the semi-interactive boundaries between a GUI component and its external margin. So, I think it would be nice for puffy bubbles to SOLVE by: - depress (un-puff / flatten) or change texture, after a fixed touch-duration, when activated - provide an outer "ring" to guide the finger to the inner "sensitive" area