The automobile market requires high capital investment, yet we don’t see just a handful of almost-identical models taking the entire market. Starting from Android, building a smartphone shouldn’t require anywhere near the investment that is required to build a sports car or niche SUV, but where are the niche phones?
Example: Pilots would surely appreciate a smartphone, maybe Garmin-brand, with built-in ADS-B receiver and AHRS. Now a full backup panel is available at all times. Frequencies for ADS-B are 0.978 GHz and 1.09 GHz, not too different from the 0.8-1.9 GHz mobile phone bands.
Readers: What other capabilities would make good additions to smartphones for niche users? Why don’t these devices exist in the marketplace?