Cortex-A15 and Apple A6 are the high-end now. Cortex-A9's are so small and (relatively) cheap that they throw 4 of them on $20 tablet SoCs even for applications

Cortex-A15 and Apple A6 are the high-end now. Cortex-A9's are so small and (relatively) cheap that they throw 4 of them on $20 tablet SoCs even for applications that don't really benefit from many cores.