I don't know if this is new or not, but I have never seen it.
I was playing a Podcast and didn't see the progression bar to show me where I was in the podcast. So I touch the screen and it brings up the text of the podcast (as entered by the author) and the progression along the top.
Under that is a 30 inside a 270 degree arc with an arrow. What it is, is a skip back 30 seconds. This is great for podcasts, if you're doing something and you miss something, very nice.
Next I noticed on the right side is 1X. Sure enough, touch it and it goes to 2X, touch it again it goes to 1/2X. Very nice.
Also on the left side is an email link, pressing it composes an email, from you, and says, "Check out this podcast on iTunes :" and then there is an iTunes link. Sweet.