I am glad I switched back from Ubuntu to Yellow Dog Linux when I did, as Canonical announced that they are dropping support and will no longer make an official PPC version of Ubuntu. Good news for Terra Soft Solutions, as people should be switching to Yellow Dog Linux for their PPC Linux needs.
Ubuntu Decides to Axe PowerPC Version, Cites Lack of Resources
The PowerPC edition of Ubuntu will be reclassified as unofficial. The PowerPC software itself and supporting infrastructure will continue to be available, and supported by a community team. Translation by OSNews.com: Ubuntu PPC can shake hands with the dodo.