With version 1.3 of calibre that I was using for managing my PRS-T2, during a transfer I got a problem with the USB link. After restarting the device, all dates inside the PRS-T2 were set to the current date (BTW I also lost the read/unread flag!)
Is is possible to update this date (date the epub was added - sorry I don't know the exact words in the Sony interface, because mine is in french) to be in sync with the Calibre library date ? A plugin somewhere ?