PS4 may in fact have Native Built in Hardware to Run PSVita Game's!

[walsufnir]

Wow, that's wrong. The ARM used in PS4 is compatible with other ARMs but it's compatible as a Pentium 1 was with Pentium 4, e.g., if you leave out the new instructions that P4 offered. The ISA (Instruction Set Architecture) is the same but not performace, so no, this won't happen.