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.