At least for the A4/Hummingbird, Intrinsity optimised the existing Cortex-A8 design for Samsung and before Apple bought them, so you disagree based on faulty facts.
Your going to have tell me what you think is wrong, because I can't read minds. I can't see any problem, but I'll rephrase to see if it's just the sentence structure that's confusing you:
Samsung worked with a company called Intrinsity.
They took the Cortex-A8 design, and Intrinsity made it a bit more power efficient.
Samsung sells these chips, and uses them in their devices.
They also sell them to Apple.
Apple gets Samsung to put Apple logos on them, and refers to them as the A4.
Apple bought the company called Intrinsity after all the work on the A4 was finished, nothing they've done in the pay of Apple has any impact on the A4 or Hummingbird core.
I responded to someone claiming that Intrinsity customised the chips for Apple. This isn't true. I linked to a press release that shows this.
You realize this doesn't make sense...right?