Listening to podcast on your blackberry is presently tricky and difficult, no simple systems.
The ideal situation would allow a user to subscribe to his or her favorite RSS feeds, then as a new Pod cast was release. In the background, the BlackBerry would download, then all a person would need to do was click play.
WARNING --- Only do this inside the USA or in your home country. Verizon of the telephone companies can charge as 2 cents per kilobyte. This would now cost 200 Dollars for one Podcast show.
I have bookmarked a couple of News Podcast on my BlackBerry here while I was in Ho, Ghana in 2011. I am a little worried, it would be easy to download five 10-20 Meg Podcast, and have about 80 Megs of Download per day. This could cause problems on the Verizon Unlimited Global Data plan.
Good luck, if you have better ideas, please write in comments, or request to become a guest writer.
Read the external links below to have a few ideas.