Juan Cespedes <[EMAIL PROTECTED]> writes: III. Modified forms of the Software may be created and distributed as long as the authors are informed of this action if possible,
Requiring notification for modification makes it non-free IMHO. But I'm not sure where this falls under the DFSG. as long as the resulting work remains under this licence, as long as the modified form of the Software is distributed with documentation which still gives credit to the original authors of the Software, and as long as the modified form of the Software is distributed with a clear statement that it is not the original form of the Software in the form that it was distributed by the authors.