Although Apple's A4 processor in the iPad/iPhone 4 is based on the ARM RISC-type processor, it appears it's instruction set is extensible. With Apple's purchase of PA Semi and Intrinsity, I figured it makes sense that Apple would take advantage of the golden opportunity to tweak their custom silicon for improved performance of Objective-C and the many software layers that ride on it to really "enhance the user experience." But I've seen no mention of the possibility anywhere. Does anyone have any insights into what's synergistically possible between the hardware and software?
