For years, I have been wanting to do my own podcasts and sometimes listen to Podcasts via iTunes.
My biggest enemy in all of this is that of time and equipment.
At CES 2009, I discovered Lexy, which is an on-demand news and entertainment service that comes to you over your mobile phone. You can listen to short podcasts from providers like NPR, The New York Times, Wired, etc., or you can create your own short "Quickcasts" and broadcast them to your network via your phone.
Here's a more in-depth piece from Mobile Content Today.
Here's a short interview with Co-founder and Creator of Chaos, Tony Levitan: