An alternate template for the RSS template in the Collaboration Asset that turns your posts into a podcast.  Make sure you update this template in a few places:

1) update FileUrl() calls for "yourlogo" asset

2) There are still a few keyword sections that currently say "Wish This Was A VAR" -- put your own keywords in.

3) Make sure you have the FetchMimeType macro enabled in your config.

4) Make sure your USS allows the posting of an attachment -- and then attach your MP3 to your post.

Your iTunes friendly RSS feed should be available at something like:

   yourdomain.com/pageurl/collaberation-url?func=viewRSS

Use a nice image button etc. 

Let me know if you have any suggested tweaks or improvements.