After OpenUP/Basic and XP, now there is a third agile process available through the Eclipse Process Framework: Scrum. The content is in French, but there is an English Scrum version under way.

If it is the first time you hear about the Eclipse Process Framework Project:

EPF aims at producing a customizable software process engineering framework, with exemplary process content and tools, supporting a broad variety of project types and development styles.

Besides the three process mentioned before, there is also a DSDM plugin in the review stage.