You know a thing or two... I have a hard time just reading your post. But I would love to read more if you found a way to unlock hidden power in the PRS-600.
Something about Freescale processors and ebook-displays. Maybe it can inspire you:
http://www.linuxfordevices.com/c/a/N...escale-iMX508/
So is this the processor?
http://www.freescale.com/webapp/sps/...sp?code=i.MX31
Good luck. And don't make a brick out of your reader.
And how did you get to see the /proc/cpuinfo?