From: Tony Williams 

 > More:
 >
 > http://www.linuxdevices.com/news/NS2986976174.html
 >

Aha!

> Similarly, the phone's quad-band GSM/GPRS module, built by FIC, runs
> the proprietary Nucleus OS on a Texas Instruments baseband powered by
> an ARM7 core. It communicates with Linux over a serial port, using
> standard "AT" modem commands.

So it's still a dual CPU design and the real phone stack is under lock and
key. A nice device nonetheless.

--
Tony

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