I can't load Intelij, Xcode, Xamarian, JVM, etc on my iPhone or my PlayStation "without a lot of effort".
What is your definition of "general" that makes one of them general, and the other one non-general?
To me the only reason an iPhone seems to be "general purpose" is because the "number of developers has reached some critical mass and wants it to be". Which seems like putting the cart before the horse.
Sanity Test: Should my microwave be a "general purpose" device because it is built with a Raspberry Pi and a touch screen?
What is your definition of "general" that makes one of them general, and the other one non-general?
To me the only reason an iPhone seems to be "general purpose" is because the "number of developers has reached some critical mass and wants it to be". Which seems like putting the cart before the horse.
Sanity Test: Should my microwave be a "general purpose" device because it is built with a Raspberry Pi and a touch screen?