A great technique for learning more about the f/w on the devices is to download one of them to your PC. Look in the
Direct Links to Kobo Firmware thread and download one of the zip files (in your case probably
http://download.kobobooks.com/firmwa...date-3.3.1.zip ).
Then on your PC, open the zip file and expand the tgz file; this is the majority of the code for the device.