What I don't understand is how this will matter. Releasing the source code won't mean that is the source code they are using for PSP. Think of it like an open source program with a compiled binary available. The only way to ensure the code is the code of the binary is to do your own compiling. But for a CPU that would mean..... something much more difficult.

The ONLY thing that can prevent this is doing away with PSP all together but if you notice in their replies that AMD glances past that idea as not going to happen because it's "impossible".