NewsForge has up an article
on a GPL requirement that could hinder some derivative Linux distributions. The one most recent distribution under attack was SimplyMEPIS, which is Ubuntu-based. It is in violation of the GNU GPL for not providing the source-code for packages which the distribution is based upon. The MEPIS founder, Warren Woodford, intends to comply with the Free Software Foundation request. It is an interesting read, and is certainly worth the time.