WIT (Wiimms ISO Tools) is licensed under GPL 2.0:
  http://www.gnu.org/licenses/gpl-2.0.txt

The source code for releases and beta versions is available in a
SVN repository. For browsing the source use the ViewVC interface:

Release:
  SVN repos: http://opensvn.wiimm.de/wii/trunk/wiimms-iso-tools/
  Browsing:  http://opensvn.wiimm.de/viewvc/wii/trunk/wiimms-iso-tools/
Latest beta:
  SVN repos: http://opensvn.wiimm.de/wii/branches/public/wiimms-iso-tools/
  Browsing:  http://opensvn.wiimm.de/viewvc/wii/branches/public/wiimms-iso-tools/

Infos, binaries and source code can be found at the WIT homepage:
  http://wit.wiimm.de/

2011-10-27, Wiimm
