Mediafly allows people to cook up their own RSS - on the Mediafly website you login and select the podcasts you like.
You then get a private RSS feed which lists the casts in order of newness. If a new cast is ready, its automatically added to the list.
This is feature much needed, and since its a normal RSS feed you can just use it in Boxees RSS app - this has mostly worked well, there have been some where the box has refused to play mp3s'- well after the latest update it seems its almost everything it doesn't play from the mediafly feed - the videos seem to work, but almost all of the mp3s don't (is it because is a mixed feed?) - HOWEVER, if you subscribe to the individual feed, then it works.
For instance BBC's movie review feed
Their link to the latest podcast is
The enclosure url in Mediaflys aggregated feed is
(The x's are my private key which I'm not going to list)
However, in Firefly both links will save out the same MP3 file.
But whilst the first link plays in the RSS feed the second produces the message about an incompatible file.