Podcasts app is the easiest way to discover, subscribe to and play your favorite podcasts on your iPhone, iPad, and iPod touch. Explore hundreds of thousands of free audio and video podcasts from the Podcasts Catalog, and play the most popular podcasts, organized for you by topic, with the all-new Top Stations feature.
Looks interesting. Not a huge surprise as apparently podcasts were removed from the Music app in iOS 6.
Though according to this tweet, RSS support is non-existent which means it's only good for podcasts listed in the iTunes Podcast directory. Shouldn't be a problem since all a podcast has to do is submit their RSS feed to Apple for inclusion - but some podcasts may not be in there for a variety of reasons.