The SigmaTel STMP3600 System on Chip (SoC) is an ARM core....seems Apple will just move around to all the ARM shops swing their mighty sword....ARM is their gig....they devised it.

``ARM Core Flexibilities

The ARM core provides consumer electronics developers more flexibility in their product designs, in the type of memory that can be used to interface to new products, and in which operating system can be used, both now and in the future. This core also includes ARM`s DSP extensions, allowing the provision of low-power digital audio controller products, as well as the additional processing power needed for higher-end applications.``

To do what e.Digital does naively...they have to cross navigate extensions.

doni