Here is an example app flow to show some of the potential actions of the kDrive.  The example here is thought out to keep minimal eyes on the device.  For example you can scroll through texts but pressing a button will initiate a read-back of the text. Similarly, to respond to text you could use the voice input instead of typing in letters.  Navigating to a location on a map can also be input via voice commands, or by pressing a button that is pre-programmed to navigate to a specific location.  All activities have one the same button programmed to take you back to the main screen.  These are just some examples of what can be done, but the buttons can be programmed to do a lot more!