migration-assistant is copyright 2006-2007 by Evan Dandrea <evand@ubuntu.com>.

This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.

A copy of the GPL can be found in /usr/share/common-licenses/GPL-2