i don't do a lot on the hardware level...not much experience
all they(sony) really did was upgrade some parts right?
looking at a STmicro doc http://www.st.com/st-web-ui/static/a...DM00024853.pdf
they have some 'indentical' features
is there a chance all of the devices are hooked up to the same place?
if not, i'm guessing there's a good chance you could fry something right =/ ?
guessing the GPIO for the buzzer/motor would be the safest/easiest to check if it's the same (since i don't have to interact with anything else)