There are tons of stories on this. I looked around and the first one I saw was from the O'Reilly Radar.
Now I see that MSNBC reports:
Apple to help users organize podcasts.
They are also referencing a survey from April in the article Millions tuning in to 'podcasts' — survey.
All of this is great news. I wish Adam would just send me the damn Castblaster BETA so we can really start to make our podcast even more professional.
If you haven't already, Check out the Weird News of the World Podcast: http://weirdnewsoftheworld.blogspot.com/