Some random website said that the Apple A4 chip was a modified ARM Cortex-a9 with everything else integrated into one chip (graphics, i/o, etc.) What i know is that the a9 is a beastly ARM chip thats dual core and reaches speeds up to 2 GHz and is known to be 5 times faster than an Intel Atom 1.66 GHz when clocked at 700 MHz. There is even a quad core model of the same chip but no single core. If this site is correct, then the iPad must be a truly powerful device. Is it 2 Core? It also says it has a Mali GPU, which is better than the SGX in the 3GS.