No, it's not. A homebrew SDK doesn't need to have anything copyrightable from the official SDK.
Developing a development tool ( SDK ), violates SONY's official ToS. ToS, of course, are not the law, but by violating the ToS you have to be careful which appendix we violate. Copying, reproducing,developing,crack,hack,reverse or anything else violates the copyright law that is above the Sony SDK; nobody and I say no one can publicly release an open source SDK and say it won't have legal issues. because it's not like that.
It violates the law and it is possible (very likely) a complaint by SONY.
You didn't reference any laws. Only the shrink wrap license, which is a contract. What if you don't agree to those terms and enter into the contract? Sony cannot unilaterally enter into a contract with me. Can you provide a link to where you copied them from?
Maybe you're not stupid, but it's not looking good.
My friend, I'm not stupid, I know what I'm talking about. This "contract", if it can be defined as such, applies to the development world and not. It is not only valid for those who enter into a partner playstation contract (software house etc) but also for an end-user.
I didn't link any specific laws? Search the internet copyright infringement. you'll see a lot of unpleasant results, especially if you go to hit SONY and all derivatives (software house in particular ). I can't link confidential material to you, but on the internet with a short search you find it easily, it should be public maybe. I have no reason to invent ^^
Returning to the famous "contract" you have named. It is mandatory to accept it, you cannot use the PS4 console and its services. This applies to Apple,Android,Microsoft,Dell,AMD, Nintendo or any other company, I could mention it indefinitely.
They all have their own SDK (some companies even multiple).
The story they tell around is that because SONY on the PS4 system uses open source material, such as FreeBSD and WebKit for example, then it is possible to exploit,reverse,code,programming and any fucking thing because it is not owned by SONY.
Wrong. Sony uses these open sources, but first of all they are modified according to sony for that system acquires the rights.
Homebrew isn't signed with any of Sony's keys.
Did I ever say otherwise? O.o Please tell me where
I would like to point out that I am not against developing an unofficial SDK, for goodness sake.I am in favour of homebrew development on PS4, but this is not the right way.
To make it short, sony does not punish those who develop homebrew, but who releases exploit/keys or any material inherent in cracking/hacking .