I’ve mentioned this before, but this news seems to be shifting from rumor to confirmed. Gizmodo posted several screen shots of the full Podcast interface for the iPhone 2.2 software. Reports indicate that we’ll be able to download podcasts over 3G, but only if the show is under 10mb. That pretty much excludes all the shows I listen to, but they should download fine over WiFi.
More info and screen shots at Gizmodo.