I use the iPod application on my iPad to watch podcasts most days, but after watching a podcast it seems impossible to get back to the initial screen (which shows when the app is launched) without quitting the app and starting it up again. Is there some sort of secret to getting back the the initial screen?
You don't specify if it's an Audio podcast or a Video podcast.
in a Video Podcast, the iPod App quits and Video app lunches with the selected Video Podcast, so when you press the DONE button you are in the Videos app
on tap on the Podcast, opens in Videos app
so, you can't go back because you are actually in other app... though the new iOS 4.2 makes that easy ;)