Google Listen: Podcast manager, search engine for Android
But Google Listen has another trick up its sleeve. In addition to subscribing to individual podcasts, you can also subscribe to "searches." Say you want information about Barack Obama, Google Android, or Oscar Nominations. Just enter your query in the search box and check the subscribe box on the results page. Now the latest story from any podcast or web audio that Google determines is related to your search will be available in your subscriptions.
Google Listen is a Google Labs project, which means it's technically beta software. However, it works pretty well and the developers have pushed out a handful of updates since it was released last August.
The latest update is version 1.03 which allows files to be downloaded while streaming, lets you resume interrupted downloads, and adds 30 second skip forward and 7 second skip backward buttons.
For a more detailed list of changes, check out the version history page.