Thanks porkupan.
This, as well other evidence such as the hardware buttons, menu/popup UI in videos, and a confirmation by one the largest gadget news website on the internet -- we have seen more than enough to convince me that the new Sony Reader is indeed running on the
Android OS.
If it doesn't convince others, you will have to wait until more official announcements will come from Sony, don't trust the mobileread newbie who found a needle in a haystack.