It's kind of amazing that this usability issue wasn't obvious given the use case. While touchscreens are great for functional enhancement over time, the lack of

It's kind of amazing that this usability issue wasn't obvious given the use case. While touchscreens are great for functional enhancement over time, the lack of tactile feedback sucks especially in a vibrating environment with varying g-forces. This combined with the recent headlines Kia made by promising to keep real buttons, highlights the opportunity to innovate a modular tactile button system. While LCD and OLED physical button surfaces address the backlit labeling issue, a standardized modular system which allows replacing, modifying and expanding physical control surface layouts without substantial re-engineering seems needed. Obvious applications include automotive, home automation, media/music production and of course instrumentation of all kinds.