According to the
wiki and some posts here, it is possible to read while the Cybook is charging with a trick involving "slide show".
Well, I've tried this today and I have a couple of comments:
1. It seems to work for me, and I have firmware build 796, though the wiki says "this only work on CyBook with Firmware Build 802 or more". But maybe my Cybook isn't really charging, although the red LED has turned on.
2. Now that it's plugged, the UI is much more responsive, page turns and menu navigation are faster, probably because the time between the button press and the OS action is reduced due to the OS being permanently "awake".
Do you have the same experience?