International Business Times | iOS 5 Untethered Jailbreak: Can Pod2g Taste Success in A5 Jailbreak? International Business Times Apple's last processor, the A4, was built upon ARM's Cortex A8 CPU which was a single core CPU. The latest - the A5 processor - is built upon ARM's Cortex A9 dual core CPU, which is the biggest hurdle in finding the bootrom-level exploit in A5 devices. ... |