This is arguably the best podcast app for Android. It has the ability to display video as well as traditional audio podcasts. New podcasts are being added all the time and you can save them to your SD card. Most of the popular podcasts are already available in this app. This app is still in beta but you wouldn’t be able to tell from the quality of it. It’s a free app available in the Android Market.
"PodKast lets you listen to your favorite audio and video podcats on the go. You will find in PodKast a selection of the most popular podcast feeds. We strive on adding new podcasts on a regular basis. Feel free to send us your suggestions and add a rating in the Android Market."