(http://www.blogcdn.com/www.downloadsquad.com/media/2010/02/listen1.jpg)
Google Listen is a podcast application for Google Android. In a nutshell, it allows you to find, download, and listen to podcasts from your Android-powered smartphone. Want to listen to episodes of This American Life on the go? Just search the directory for the show, hit the subscribe button, and Google Listen will download the latest episode for you to listen to.
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.
http://listen.googlelabs.com/