If someone's willing to put in the time to redo our code in Python, I wouldn't be opposed to that. However, keep in mind that it'd be a massive undertaking. Last time we re-wrote our apps, it took a full-time developer multiple months. Admittedly, everything was brand new, and included collecting requirements and validating the prototypes with the volunteers. So perhaps a "simple" rewrite, keeping all the logic the same, wouldn't be so hard.

Also keep in mind - a good chunk of the volunteers aren't tech-savvy, and are nervous when faced with changes. Just upgrading to a new phpBB version, with a new theme, was met with some grumbles.

I realize I'm a horrible salesman, but something about LibriVox just keeps me involved. I don't even participate in the audiobooks aspect of it, just tech. I was initially brought on as a paid sysadmin as part of that project to modernize our code that took that full-time developer months. When that ended, I stuck around as a volunteer.