Free Software Foundation has a web-page which details the reporting process. It's here:
http://www.fsf.org/licensing/license...violation.html
Part of the problem is that the Cybook does not contain an explicit notification of the use of Linux, nor which platform/family from which it is derived. Further, none of the documentation states anything about receiving source code or licensing information (GPL or otherwise). And even the most cursory reading of the FSF webpage pretty much makes it clear this information is necessary somewhere.
Derek