In iPhone OS 2.x, we bemoaned the seemingly useless nature of the repeat and buttons when it came to podcast playback. They just sort of hung around, like guests who were welcome when the music was playing, but just wouldn't leave when the party was over.
Now, in iPhone 3.0, Apple has replaced them with an email icon on the left hand side, and a speed counter on the right hand side. The email icon supposedly allows you to send an iTunes Link for the podcast (similar to how you could previously email YouTube video links).
The speed indicator on the other hand, shows x1 during regular playback, and we presume it might show x2 etc. during fast forward. (Apple has allowed you to "speed up" talk-heavy content like Audio Books for a long time).
Where the Genius button would be on music tracks, we now have a circular backwards arrow with a 30 in the middle, which we figure allows you to jump back in 30 second intervals.
Variable media scrubbing now lets you put your finger on the position indicator at the top, the buttons change to a text message reading "Slide your finger down to adjust the scrubbing rate." Slide your finger down the screen and the speed that you scrub changes. Displayed in place of the track info, options so far include half speed, quarter speed, and a fine grain speed.
Since accurately going to a location on a podcast prior to 3.0 was difficult at best, these look to be excellent enhancements.
Anything else we're looking for from Apple for Podcasts?