Marko Bolowski, the chap behind the Sony Librie (http://www.mobileread.com/forums/search.php?query=Sony+and+Librie&do=process) translation project (http://www.mobileread.com/forums/showthread.php?t=4315), gave in to our desire to explore the Librie's internals and released a tool which allows us to open a root console via USB to the Sony device.

USBPD consists of a console program (that runs on the USBPD host device, i.e. any Linux computer) and a server program (that runs on the USBPD target device, i.e. our Sony Librie); the precompiled binaries (including sources, of course) can be downloaded here (http://developer.berlios.de/project/showfiles.php?group_id=3700&release_id=6614).