Selling Linux to Windows Users

Florian Diesch diesch at
Mon Dec 15 09:23:25 UTC 2008

Knapp <magick.crow at> wrote:

>> Gilles.
> Commercial developers of Linux.
> You missed a big one here. This one was a bit of a shock to me. KDE
> was not free! To be more exact QT (the lib of KDE) is a company.
> I always thought it was just like the kernal.

Qt is available under GPL, so it's free. It's available under a
commercial licence, too, for people developing closed source
software. That's a quite common business model in the FOSS world.

When KDE started Qt wasn't free, there just was a 'free for
non-commercial use' type of license. This led to much discussions and
flame wars, and ultimately to make GTK independent of The Gimp and to GNOME.

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