Free Software in a Nintendo DS Game!

A while ago, I completed a game called Soul Bubbles for the Nintendo DS (good game by the way) however recently I discovered something very important in the ending credits.

During the section where the developers thank others, there is section thanking developers of free software! A screenshot of this is below:

It says:

Thanks to all the developers who worked
on the following Free Software:

Qt
GTS - The GNU Triangulated Surface Library
Libxml2
CQuantizer by Jeff Prosise & Davide Pizzolato
Inkscape

Wow that is first time I have noticed Free Software getting press on a console!! What makes it even better is that the game was actually really great to play, proof that free software = good games (if we ever needed one :-] ).

Below is a video of the section in the credits: