rahman

In my humble opinion the home button should disappear from the front and place it at the back where the user can click it with their index finger or on the side of the device, click with thumb.  This way there is more space for display at the front and also cheaper to produce the display.  If the future of systems are voice command than a home button is a secondary effect or completely unnecessary but again probably not possible for the next gen of smartphones.  Someone mentioned 3D implementation in the next gen phone but I think more of hologram implementation because VR is completely useless to consumers in the day-2-day usage.  I believe VR is the training ground for hologram.