Not sure whether this has any relevance but, some time ago, I noted:
Quote:
Originally Posted by kumaryu
I've been comparing the tech specs for KT from Rakuten and that available on Kobo site. The only h/w diffeence that I can see is the use of iMX507 on the Rakuten model as opposed to iMX508. As far as I can tell, the only difference between 507 and 508 is that the former lacks 2D acceleration.
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also, tonyv reported the following:
Quote:
Originally Posted by tonyv
Hi
My Kobo touch (bought around may 2012) has an internal micro sd card and also uses imx.507 rather than imx.508 diff seems to be no openvg acceleration for 507.
Tony
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This would indicate that there are models with different processors out there, not just in JP.
Since we can assume that the original models used iMX508, and the specs featuring iMX507 only appeared in 2012 (Spring), the change-over must have happened at some point between the oroginal release and JP launch.