Well, here's an update -
Wrote to Bookeen to complain about the PDF and battery life issues, and they sent me the 538 Firmware.
Tried to Reflash the device, and it was all going smoothly, and the reflash process had started. Then the progress bar appeared to have frozen.
I left it alone for a little while longer, figuring that it was doing something under the hood, and then when nothing seem to have happened for aboy 20 minutes, tried to see if it was working.
this is the result
As you can see that while the menu options are accessible, it isn't really usable.
Repeated the process after re-downloading the firmware and using another SD card, just to eliminate that factor, but no dice.
luckily, was able tp restore the device to working condition using 685.
So has anyone else run into this problem when trying to downgrade.
(I have one of the new Gen3's with 512mb internal memory, and the battery was fully charged when I tried to do this)
I've written to Bookeen about this so lets see what they say.