QBee is a simple Livejournal client written on C++ using Qt 4. Not it`s compiled under Linux, but you can compile it for Windows or Mac. QBee is free software distributed under terms of GNU Public License. Now QBee is only for enthusiasts, not for the most of users.
You can download QBee here (and there you can find all useful information about QBee).
The community for users is ru_qbee.