I consistently get one or two messages a week about my mobile podcasting setup. The reference post was in April 2005. The setup is working pretty good IMHO.
But I get so little feedback from listeners of Tech News Radio I am not completely sure. I am guessing that no feedback either means no one is listening (which I know is not true because a lot of people are still downloading) or people are happy.
Anyway ... there is also a handy list of other people's podcast setup configurations via this post back in January 2005.
All this above info is great, but I just got a copy of Todd Cochrane's "Podcasting: Do It Yourself Guide" book and I am pretty impressed. It seems like a great resource for anyone considering doing their own podcast.