I'm not really into the jail breaking / free software / right to repair side of this issue. I'm more interested in jailbreaking iOS devices because I believe they are incredible alternative to Raspberry Pi. If you consider how cheaply you can find a used iPhone 4S and what it's capable of, vs. a Raspberry Pi (as much as I love them) the engineering of the iPhone SOC really becomes stark in comparison. I'd rather be writing Swift code and loading it onto an iPhone.

I believe an old iPhone could potentially make for a great DIY drone mainboard/controller.