The PodNova 2.4 version of this software is released, but you can't download it from SourceForge anymore. Please follow the following link to download version 2.4 (Windows, OSX, Linux):
Based on the latest Juice Receiver (version 2.2)
Added: true bi-directional synchronization between the server (http:/www.podnova.com) and the client software
Added: logon using your PodNova username (no more manual copying/pasting of OPML feed)
Added: GNU/Linux version