Does a well designed Podcatcher App Exist for Windows Mobile HTC Diamond?

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I can't find one that downloads subscribed podcasts over the air AND also has smart playlists that manage the downloaded files by automatically deleting old episodes when new podcast episodes become available to replace them and/or automatically deletes them after being played.

There are good ones for the iPhone, Blackberry and Andriod, but for Windows Mobile, I can only find clunky apps that require alot of manual file management.

Does anything exist?
Kinoma Play has a nice GUI, but it doesn't do smart playlists and is more designed for music, so podcast support isn't a major priority for them.

Does anyone know if Stitcher Radio will make a Windows Mobile app this year or ever? So far, they are making their app for everything else.