Isn’t the obvious one. Genius looks useful, but I don’t play music on my computer much so I’ll wait for the iPhone 2.1 firmware before I try it. Grid view is all nice and fancy, but lags on my old mac 🙂
I didn’t even know this other new feature existed until I read John Gruber’s summary on DF. You can now change podcast settings per-podcast!
Over the last 4 years I’ve been fairly happy with “keep all unplayed episodes” but this has meant I tend to unsubscribe from high traffic shows. Now I can use “keep the most recent episode” for those shows 😀