I think those may be two separate issues...the bol issue is being discussed over here - Audio podcasts shows up as news article | Home of DoggCatcher the Android Podcatcher
If the androidguys thing you are mentioning is only with the most current item, then I've seen that before. As soon as they publish a podcast, they create a new podcast for the future item, and this one doesn't have any media (because is hasn't been recorded yet). So it shows up in DC as news, until they record and attach the media to the item. This is the only feed that I have ever seen do this. It might be something specific to blogtalkradio but I'm not sure.