Ah well, a pity. I recognised most Qt apps are still relying on the Qt3 compatibility libs and pure Qt4 apps are rather rare.
Basket would have filled the needs for a decent GTD app.

Organising my life, projects and architectures with text files strikes me so org-mode is not for me as well as taskjuggler is not (unless a decent frontend is available
I made several approaches but I never went comfortable with such tools.