Earlier quoted context omitted.
You can definitely hack iOS all you want to, use private APIs, do all sorts of things that are against the App Store rules, run it on your own device and publish the code to GitHub to let other hackers compile it and run it from source. iPhone enthusiasts Stephen Hackett (his real name), hack into pre-release versions of iOS all of the time to see how it’s running from their computer. Even that 1986 6th grade hacker…
Do tell me how I can run my own home screen, directly access the filesystem, write my own device driver or tweak the kernel without voiding my warranty and risking bricking my phone using a jailbreak exploit, assuming one is available for my device. This "you can build and directly deploy an app to a limited number of devices if you're on the developer program and have a mac, therefore you can 'hack iOS all you want'…
nut up. hacking has never been perfectly safe and has never had a promise of easy. if you want it enough, you can make it happen.