Recently I spend a lot of time travelling and found listening to the following podcasts on WordPress useful:
1. WP Water Cooler – Roundtable discussion sometimes involving WordPress. Recorded Mondays at 11:00am PST.
2. Hello Dolly – Newest podcast in the arena. Available in iTunes.
4. da WP Show – This is a new podcast. Hope to see more episodes regularly.
5. Please Advise – An occasional podcast discussing WordPress and more.
6. WP Community – This is the most happening WordPress podcast with all the leading names in the Industry. I liked the informality of the show and the variety of topics they cover.
Please let me know if you know more WordPress podcasts happening.