Is this a surprise? Are you surprised? I don't think you should be. As Techdirt writes, it's a young technology and a stable market for the audio recordings hasn't developed yet. There is tons of hype around podcasting that needs to be waded through.
I don't know about you, but to me, this is one of the fastest moving technologies I have seen in my 10 long years of covering the Internet. (Fun everyonceinawhile to sound like a grizzled veteran...)
Podcasting has just flung up tons of excitement and has amazing promise as a media game changer. But we kind of still need to treat it like an unstable chemical out of a lab. What shape will it take once it cools down?