"Why? It’s largely because one of the most expensive components — the processor — is a custom-made, in-house Apple (AAPL) 1GHz chip called the A4. In April 2008, Apple bought a chip company called PA Semiconductor, which according to Forbes at the time was “known for its design of sophisticated, low-power chips.” Forbes also said this was a “blow for chip-maker Intel,” which had been trying to sell Apple on its low-power Atom chips."
"PA Semi, like most chip-makers, licensed much of its intellectual property (in the form of chip designs) from ARM Holdings, a small British semiconductor design company that provides the building blocks to companies like TI (TXN), Qualcomm (QCOM) and now Apple. In fact, ARM’s general manager of IP, Simon Segars, told me last year that they sell their famously efficient chip designs to “almost every semiconductor company… in one way or another,” many of whom are still paying royalties after licensing fees."
http://industry.bnet.com/technology/100049...y-arm-all-over/
There, evidence that it is ARM technology.
