I signed on a few weeks back as Committer on the jPodder project. Specifically, I volunteered to help Christophe take the awesome jPodder and make it i18n aware.
Currently, we are working on externalizing all text in English. Once we have completed the task, we'll be looking for a few volunteers to help with language translation.
If you are interested, please contact the Dev list at jpodder-develop at lists.sourceforge.net