Here is a little gui I’m writing for my Bus Pirate and as an exercise in Qt. It is far from finish but I thought some of you might find it useful. At the moment, It’s nothing more than a modified console with support for the firmware upgrade (which might work on a v4 but I can’t test it yet). I use Qt and QSerialDevice so, in theory, it should work under Linux, Windows and Mac but I only work under Linux. Compiling it should be as easy as opening the all.pro file in QtCreator and clicking run or the usual (if you know Qt) qmake/make.
Via the forum.