Fascinating teardown of the deeply FOSS smartphone, the Librem 5:
https://arstechnica.com/gadgets/2020/01/librem-5-phone-hands-on-a-proof-of-concept-for-the-open-source-smartphone/
miniblog.
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USB-A connectors seem absolutely massive when the majority of my connectors are USB-C. With hindsight, maybe the original USB standard could have been smaller.
USB 1 came out in 1996, way before the modern smartphone, so I assume it was more focused on desktop devices.
I've written CLI programs, GUIs, websites, but never a smartphone app. I suspect it would be tricky: playing with your WIP app on a laptop doesn't feel the same as loading it on a handset.
Have you ever written a smartphone app to scratch an itch? How was it?
Thinking more about software pricing trends: boxed software was often £30+ when I was a kid. Paying that amount for a smartphone app seems expensive today.