Dear Developrer, I'm a linux user and I use qcad a lot form 2.x.
QCAD is a nice cad program, I just hope QCAD interface can be better integrate into LInux UI. Just hope QCAD's menu can work with global meun In ubunu unity, kde 4 and gnome session, this can make QCAD get more screen space and looks more simplistic. Lot's of qt app has to so, like scribus, fontmatrix.
I don't know how to inster a image in the forum, maybe I can email you the global menu looking, thanks.